Here is a list of 5 syllable words that start with ‘I.’ There is a total of 576 words in these tables. Each table is divided into two columns. The left column contains the five-syllable ‘I’ words, and the right column includes the syllables.
While making this table, we have removed those words that are no longer used in modern literary works. If you see any errors in this list, please let us know.
5 Syllable Words Syllables Icacinaceae icac-i-na-ce-ae Ichneumonidae ich-neu-mon-i-dae Ichneumonoidea ich-neu-mo-noi-dea Ichthyobdella ich-thy-ob-del-la Ichthyobdellid ich-thy-ob-del-lid Ichthyocephali ich-thyo-ceph-a-li Ichthyodorulite ich-thyo-dor-u-lite Ichthyological ich-thy-ol-o-gy Ichthyophagi ich-thy-oph-a-gi Ichthyophagist ich-thy-oph-a-gist Ichthyophagous ich-thy-oph-a-gous Ichthyopsida ich-thy-op-si-da Ichthyornithes ich-thy-or-ni-thes Ichthyosauridae ich-thyo-sau-ri-dae Ichthyotomi ich-thy-ot-o-mi Identicality iden-ti-cal-i-ty Identification iden-ti-fi-ca-tion Idioandrosporous id-io-an-drospo-rous Idiocracies id-i-oc-ra-cy Idiocrasy id-i-oc-ra-sy Idiocratic id-i-o-crat-ic Idiographic id-i-o-graph-ic Idiomatic id-i-o-mat-ic Idiometer id-i-om-e-ter Idiomorphic id-i-o-mor-phic Idiopathic id-i-o-path-ic Idiophanous id-i-oph-a-nous Idiorrhythmism id-i-or-rhyth-mism Ignominious ig-no-min-i-ous Iguanodontia igua-no-don-toi-dea Iliopsoatic il-io-pso-at-ic Illegitimate il-le-git-i-mate Illiberalism il-lib-er-al-ism Illiteracies il-lit-er-a-cy Illocutionary il-lo-cu-tion-ary Illuminati il-lu-mi-na-ti Illuminating il-lu-mi-nat-ing Illumination il-lu-mi-na-tion Illuminatism il-lu-mi-na-tism Illuminatist il-lu-mi-na-tist Illuminative il-lu-mi-na-tive Illuminato il-lu-mi-na-to Illustratory il-lus-tra-to-ry Illuviated il-lu-vi-a-tion Imaginational imag-i-na-tion-al Imbecilities im-be-cil-i-ty Imidacloprid im-id-a-clo-prid Imitational im-i-ta-tion-al Immaculacy im-mac-u-la-cy Immanentization im-ma-nent-iza-tion Immarcescible im-mar-ces-ci-ble Immaterial im-ma-te-ri-al Immaterials im-ma-te-ri-als Immediacies im-me-di-a-cy Immediately im-me-di-ate-ly
5 Syllable Words Syllables Immediateness im-me-di-ate-ness Immediatism im-me-di-a-tism Immediatist im-me-di-a-tist Immedicable im-med-i-ca-ble Immemorial im-me-mo-ri-al Immensurable im-men-su-ra-ble Immethodical im-me-thod-i-cal Immigratory im-mi-gra-to-ry Immiserate im-mis-er-a-tion Immitigable im-mit-i-ga-ble Immoderacy im-mod-er-a-cy Immorality im-mo-ral-i-ty Immortalisable im-mor-tal-iz-able Immortality im-mor-tal-i-ty Immunization im-mu-ni-za-tion Immunoassay im-mu-no-as-say Immunogenesis im-mu-no-gen-ic Immunologic im-mu-nol-o-gy Immunosorbent im-mu-no-sor-bent Immunosuppress im-mu-no-sup-press Impecunity im-pe-cu-ni-ty Impedimenta im-ped-i-men-ta Impedimental im-ped-i-men-tal Impenetrable im-pen-e-tra-ble Imperatival im-per-a-ti-val Imperatorship im-per-a-tor-ship Imperceptible im-per-cep-ti-ble Impercipience im-per-cip-i-ence Imperialism im-pe-ri-al-ism Imperialize im-pe-ri-al-ize Impermanency im-per-ma-nen-cy Impermissibility im-per-mis-si-ble Impersonalization im-per-son-al-ize Impertinencies im-per-ti-nen-cy Impertinentness im-per-ti-nent-ness Imperturbableness im-per-turb-able-ness Imperviable im-per-vi-a-ble Impetratory im-pe-tra-to-ry Impetuoso im-pet-u-o-so Implementary im-ple-men-ta-ry Implementation im-ple-men-ta-tion Implicational im-pli-ca-tion-al Imponderability im-pon-der-a-ble Importunacy im-por-tu-na-cy Importunities im-por-tu-ni-ty Impracticability im-prac-ti-ca-ble Imprecatingly im-pre-cat-ing-ly Impresarial im-pre-sar-i-al Impressionistic im-pres-sion-is-tic Imprimatura im-pri-ma-tu-ra Impropriation im-pro-pri-a-tion Impropriator im-pro-pri-a-tor Improprieties im-pro-pri-e-ty Improvisation im-pro-vi-sa-tion Improvisator im-prov-i-sa-tor
5 Syllable Words Syllables Impudicity im-pu-dic-i-ty Imputational im-pu-ta-tion-al Inaccessibility in-ac-ces-si-ble Inaccuracies in-ac-cu-ra-cy Inadequacies in-ad-e-qua-cy Inadmissibility in-ad-mis-si-ble Inadvertencies in-ad-ver-ten-cy Inamorato in-am-o-ra-to Inapplicability in-ap-pli-ca-ble Inappreciable in-ap-pre-cia-ble Inappreciative in-ap-pre-cia-tive Inappropriate in-ap-pro-pri-ate Inarticulate in-ar-tic-u-late Inauguration in-au-gu-ra-tion Incalculability in-cal-cu-la-ble Incanestrato in-ca-ne-stra-to Incapacitate in-ca-pac-i-tate Incapacities in-ca-pac-i-ty Incarcerated in-car-cer-at-ed Incarceration in-car-cer-a-tion Incarcerator in-car-cer-a-tor Incardination in-car-di-na-tion Incarnationist in-car-na-tion-ist Incendiarism in-cen-di-a-rism Incendiarist in-cen-di-a-rist Incidentalist in-ci-den-tal-ist Incidentally in-ci-den-tal-ly Incidentalness in-ci-den-tal-ness Incinerator in-cin-er-a-tor Incipiative in-cip-i-a-tive Incipiency in-cip-i-en-cy Incivility in-ci-vil-i-ty Inclinatory in-cli-na-to-ry Inclinometer in-cli-nom-e-ter Inclusivity in-clu-siv-i-ty Incombustibility in-com-bus-ti-ble Incommensurate in-com-men-su-rate Incommiscible in-com-mis-ci-ble Incommodious in-com-mo-di-ous Incommodity in-com-mod-i-ty Incomparability in-com-pa-ra-ble Incompatible in-com-pat-i-ble Incompetency in-com-pe-ten-cy Incomprehension in-com-pre-hen-sion Inconcinnity in-con-cin-ni-ty Inconclusible in-con-clu-si-ble Inconformity in-con-for-mi-ty Incongruities in-con-gru-i-ty Inconscionable in-con-scio-na-ble Inconsecutive in-con-sec-u-tive Inconsequentia in-con-se-quen-tia Inconsequential in-con-se-quen-tial Inconsiderable in-con-sid-er-able Inconsiderate in-con-sid-er-ate Inconsistency in-con-sis-ten-cy
5 Syllable Words Syllables Inconspicuous in-con-spic-u-ous Incontaminate in-con-tam-i-nate Incontinency in-con-ti-nen-cy Incontinently in-con-ti-nent-ly Incontrollable in-con-trol-la-ble Incontrovertible in-con-tro-vert-ible Inconveniencies in-con-ve-nien-cy Incorporated in-cor-po-rat-ed Incorporation in-cor-po-ra-tion Incorporeal in-cor-po-re-al Incorrigibility in-cor-ri-gi-ble Incorruptibleness in-cor-rupt-ible-ness Incredulity in-cre-du-li-ty Incrementalism in-cre-men-tal-ism Incriminator in-crim-i-na-tor Inculpatory in-cul-pa-to-ry Incunabula in-cu-nab-u-lum Incunabular in-cu-nab-u-lar Incunabulist in-cu-nab-u-list Incurvariid in-cur-var-i-id Incurvariidae in-cur-va-ri-idae Indaconitine in-da-con-i-tine Indeciduate in-de-cid-u-ate Indeciduous in-de-cid-u-ous Indecipherable in-de-ci-pher-able Indecomposable in-de-com-pos-able Indefeasibility in-de-fea-si-ble Indefectibility in-de-fec-ti-ble Indefensibility in-de-fen-si-ble Indefinitude in-de-fin-i-tude Indeflectible in-de-flec-ti-ble Indelicacy in-del-i-ca-cy Indemnization in-dem-ni-za-tion Indemonstrable in-de-mon-stra-ble Independency in-de-pen-den-cy Indestructibility in-de-struc-ti-ble Indeterminable in-de-ter-min-able Indeterminate in-de-ter-mi-nate Indeterminism in-de-ter-min-ism Indexically in-dex-i-cal-ly Indianaite in-di-an-a-ite Indifferency in-dif-fer-en-cy Indifferentism in-dif-fer-ent-ism Indigoferous in-di-gof-er-ous Indisciplinable in-dis-ci-plin-able Indiscoverable in-dis-cov-er-able Indiscriminate in-dis-crim-i-nate Indisposition in-dis-po-si-tion Indissociable in-dis-so-cia-ble Indissolubility in-dis-sol-u-ble Indistinguishability in-dis-tin-guish-able Individual in-di-vid-u-al Individuate in-di-vid-u-ate Individuum in-di-vid-u-um Indivisibility in-di-vis-i-ble
5 Syllable Words Syllables Indological in-do-log-i-cal Indomethacin in-do-meth-a-cin Indomitability in-dom-i-ta-ble Indubitability in-du-bi-ta-ble Inductometer in-duc-tom-e-ter Industrialise in-dus-tri-al-ise Industrialism in-dus-tri-al-ism Industrialist in-dus-tri-al-ist Industrialize in-dus-tri-al-ize Industrialness in-dus-tri-al-ness Ineducability in-ed-u-ca-ble Ineffectual in-ef-fec-tu-al Inefficacious in-ef-fi-ca-cious Inefficacy in-ef-fi-ca-cy Inefficiencies in-ef-fi-cien-cy Ineligibility in-el-i-gi-ble Inequitable in-eq-ui-ta-ble Ineradicability in-erad-i-ca-ble Inestimable in-es-ti-ma-ble Inevitability in-ev-i-ta-ble Inevitably in-ev-i-ta-bly Inexactitude in-ex-ac-ti-tude Inexorability in-ex-o-ra-ble Inexpedience in-ex-pe-di-ence Inexpedient in-ex-pe-di-ent Inexperience in-ex-pe-ri-ence Inexpiable in-ex-pi-a-ble Inexplicability in-ex-pli-ca-ble Inexpugnable in-ex-pug-na-ble Inextinguishable in-ex-tin-guish-able Inextirpable in-ex-tir-pa-ble Inextricability in-ex-tri-ca-ble Infallibleness in-fal-li-ble-ness Infantilistic in-fan-ti-lis-tic Infatuated in-fat-u-at-ed Infatuation in-fat-u-a-tion Infatuator in-fat-u-a-tor Infectibility in-fect-ibil-i-ty Infectivities in-fec-tiv-i-ty Infelicities in-fe-lic-i-ty Infelicitous in-fe-lic-i-tous Inferentially in-fer-en-tial-ly Infibulation in-fib-u-la-tion Infidelities in-fi-del-i-ty Infiltrometer in-fil-trom-e-ter Infinitival in-fin-i-ti-val Inflammatorily in-flam-ma-to-ry Informatorily in-for-ma-to-ry Infracostales in-fra-cos-ta-lis Infraspecific in-fra-spe-cif-ic Infundibula in-fun-dib-u-lum Infundibular in-fun-dib-u-lar Infundibulate in-fun-dib-u-late Infuriating in-fu-ri-at-ing Infusoria in-fu-so-ri-um
5 Syllable Words Syllables Infusorial in-fu-so-ri-al Infusorian in-fu-so-ri-an Infusoriform in-fu-so-ri-form Infusorigen in-fu-so-ri-gen Infusorioid in-fu-so-ri-oid Ingenerable in-gen-er-a-ble Ingeniosity in-ge-nios-i-ty Ingenuities in-ge-nu-i-ty Ingratiating in-gra-ti-at-ing Inhabitancy in-hab-i-tan-cy Inhabitation in-hab-i-ta-tion Inhabitiveness in-hab-i-tive-ness Inharmonious in-har-mo-ni-ous Inhospitable in-hos-pi-ta-ble Inhumanities in-hu-man-i-ty Inimicable in-im-i-ca-ble Inimicalness in-im-i-cal-ness Inimicitious in-im-i-ci-tious Inimitable in-im-i-ta-ble Injucundity in-ju-cun-di-ty Innocuity in-no-cu-i-ty Innumerable in-nu-mer-a-ble Inoculation in-oc-u-la-tion Inoperable in-op-er-a-ble Inoperative in-op-er-a-tive Inordinacy in-or-di-na-cy Inordination in-or-di-na-tion Inquietation in-qui-e-ta-tion Insalubrious in-sa-lu-bri-ous Insecticidal in-sec-ti-cid-al Insecticolous in-sec-tic-o-lous Insectivora in-sec-tiv-o-rae Insectivorous in-sec-tiv-o-rous Insectology in-sec-tol-o-gy Insecurities in-se-cu-ri-ty Inseminator in-sem-i-na-tor Inseparability in-sep-a-ra-ble Insessorial in-ses-so-ri-al Insignificance in-sig-nif-i-cance Insignificant in-sig-nif-i-cant Insinuating in-sin-u-at-ing Insinuation in-sin-u-a-tion Insinuendo in-sin-u-en-do Insolubilization in-sol-u-bi-lize Inspectoral in-spec-to-ri-al Inspirationist in-spi-ra-tion-ist Inspiratory in-spi-ra-to-ry Instability in-sta-bil-i-ty Instigatingly in-sti-gat-ing-ly Institutional in-sti-tu-tion-al Institutionary in-sti-tu-tion-ary Institutionise in-sti-tu-tion-ize Instructorial in-struc-to-ri-al Instrumentalism in-stru-men-tal-ism Instrumentalist in-stru-men-tal-ist
5 Syllable Words Syllables Instrumentalize in-stru-men-tal-ize Instrumentary in-stru-men-ta-ry Instrumentation in-stru-men-ta-tion Instrumentator in-stru-men-ta-tor Insubordinate in-sub-or-di-nate Insufficiencies in-suf-fi-cien-cy Insultability in-sult-abil-i-ty Insuperable in-su-per-a-ble Insurrectionize in-sur-rec-tion-ize Insusceptibility in-sus-cep-ti-ble Integrationist in-te-gra-tion-ist Integumental in-teg-u-men-tal Intellectual in-tel-lec-tu-al Intelligencer in-tel-li-genc-er Intelligency in-tel-li-gen-cy Intelligentsia in-tel-li-gent-sia Intelligibility in-tel-li-gi-ble Intensifier in-ten-si-fi-er Intentionalism in-ten-tion-al-ism Intentionally in-ten-tion-al-ly Interactionism in-ter-ac-tion-ism Interactionist in-ter-ac-tion-ist Interamnian in-ter-am-ni-an Interannual in-ter-an-nu-al Intercalary in-ter-ca-la-ry Intercellular in-ter-cel-lu-lar Intercollegiate in-ter-col-le-giate Intercolonial in-ter-co-lo-nial Intercommonage in-ter-com-mon-age Intercommunal in-ter-com-mu-nal Intercommunion in-ter-com-mu-nion Intercompany in-ter-com-pa-ny Interconnected in-ter-con-nect-ed Interconversion in-ter-con-ver-sion Intercorporate in-ter-cor-po-rate Intercorrelate in-ter-cor-re-late Intercrystalline in-ter-crys-tal-line Intercultural in-ter-cul-tur-al Interdependence in-ter-de-pen-dence Interdependent in-ter-de-pen-dent Interdiffuse in-ter-dif-fu-sion Interdigitate in-ter-dig-i-tate Interdominion in-ter-do-min-ion Interelectronic in-ter-elec-tron-ic Interestingly in-ter-est-ing-ly Interfaculty in-ter-fac-ul-ty Interfamilial in-ter-fa-mil-ial Interfamily in-ter-fam-i-ly Interferogram in-ter-fer-o-gram Interferograph in-ter-fer-o-graph Interfluminal in-ter-flu-mi-nal Interfluvial in-ter-flu-vi-al Interfoliate in-ter-fo-li-ate Intergalactic in-ter-ga-lac-tic Intergeneric in-ter-ge-ner-ic
5 Syllable Words Syllables Intergenomal in-ter-ge-no-mal Intergradation in-ter-gra-da-tion Intergranular in-ter-gran-u-lar Interhemispheric in-ter-hemi-spher-ic Interhospital in-ter-hos-pi-tal Interimistic in-ter-im-is-tic Interindustry in-ter-in-dus-try Interinfluence in-ter-in-flu-ence Interiorise in-te-ri-or-ise Interiorization in-te-ri-or-ize Interiorness in-te-ri-or-ness Interjacency in-ter-ja-cen-cy Interjaculate in-ter-jac-u-late Interjectional in-ter-jec-tion-al Interjectionary in-ter-jec-tion-ary Interjectural in-ter-jec-tur-al Interlacustrine in-ter-la-cus-trine Interlaminar in-ter-lam-i-nar Interlineal in-ter-lin-e-al Interlineary in-ter-lin-e-ary Interlineate in-ter-lin-e-ate Interlobular in-ter-lob-u-lar Interlocution in-ter-lo-cu-tion Interlocutor in-ter-loc-u-tor Interlocutress in-ter-loc-u-tress Interlucation in-ter-lu-ca-tion Interludial in-ter-lu-di-al Intermedial in-ter-me-di-al Intermediaries in-ter-me-di-ary Intermediate in-ter-me-di-ate Intermenstrual in-ter-men-stru-al Intermetallic in-ter-me-tal-lic Interminable in-ter-mi-na-ble Intermitotic in-ter-mi-tot-ic Intermittency in-ter-mit-ten-cy Intermundia in-ter-mun-di-um Intermundial in-ter-mun-di-al International in-ter-na-tion-al Internationale in-ter-na-tio-nale Internuclear in-ter-nu-cle-ar Internucleon in-ter-nu-cle-on Internuncial in-ter-nun-ci-al Internunciary in-ter-nun-ci-ary Internuncii in-ter-nun-ci-us Interobserver in-ter-ob-serv-er Interoceanic in-ter-oce-an-ic Interoceptive in-ter-o-cep-tive Interoceptor in-ter-o-cep-tor Interoperate in-ter-op-er-ate Interopercular in-ter-oper-cu-lar Interoperculum in-ter-oper-cu-lum Interorbital in-ter-or-bit-al Interpandemic in-ter-pan-dem-ic Interparticle in-ter-par-ti-cle Interpenetrate in-ter-pen-e-trate
5 Syllable Words Syllables Interpersonal in-ter-per-son-al Interplanetary in-ter-plan-e-tary Interpolater in-ter-po-lat-er Interpolation in-ter-po-la-tion Interposingly in-ter-pos-ing-ly Interposition in-ter-po-si-tion Interpretation in-ter-pre-ta-tion Interpretership in-ter-pret-er-ship Interprovincial in-ter-pro-vin-cial Interproximal in-ter-prox-i-mal Interpupillary in-ter-pu-pil-lary Interradia in-ter-ra-di-um Interregional in-ter-re-gion-al Interrelated in-ter-re-lat-ed Interreligious in-ter-re-li-gious Interrogable in-ter-ro-ga-ble Interrogation in-ter-ro-ga-tion Interrogative in-ter-rog-a-tive Interrogator in-ter-ro-ga-tor Interscholastic in-ter-scho-las-tic Intersectional in-ter-sec-tion-al Intersegmental in-ter-seg-men-tal Intersensory in-ter-sen-so-ry Intersexual in-ter-sex-u-al Interspecies in-ter-spe-cif-ic Interspersedly in-ter-spers-ed-ly Interstadial in-ter-sta-di-al Interstimulus in-ter-stim-u-lus Interstratified in-ter-strat-i-fied Intersubjective in-ter-sub-jec-tive Interterminal in-ter-ter-mi-nal Intertragian in-ter-tra-gi-an Intertranslatability in-ter-trans-lat-able Intertropical in-ter-trop-i-cal Intertwiningly in-ter-twin-ing-ly Interventionism in-ter-ven-tion-ism Intervertebral in-ter-ver-te-bral Intervisibilities in-ter-vis-i-ble Intervocalic in-ter-vo-cal-ic Intervolution in-ter-vo-lu-tion Interwovenness in-ter-wo-ven-ness Intestiniform in-tes-ti-ni-form Intestinointestinal in-tes-ti-no-intestinal Intestinovesical in-tes-ti-no-vesical Intichiuma in-ti-chi-u-ma Intimidated in-tim-i-dat-ed Intimidating in-tim-i-dat-ing Intitulation in-tit-u-la-tion Intolerability in-tol-er-a-ble Intoxicated in-tox-i-cat-ed Intoxication in-tox-i-ca-tion Intoxicative in-tox-i-ca-tive Intrabiontic in-tra-bi-on-tic Intracardiac in-tra-car-di-ac Intracellular in-tra-cel-lu-lar
5 Syllable Words Syllables Intracerebral in-tra-ce-re-bral Intracompany in-tra-com-pa-ny Intracranial in-tra-cra-ni-al Intragalactic in-tra-ga-lac-tic Intramuscular in-tra-mus-cu-lar Intransigentism in-tran-si-gent-ism Intransitivize in-tran-si-tiv-ize Intraocular in-tra-oc-u-lar Intrapersonal in-tra-per-son-al Intraspecific in-tra-spe-cif-ic Intrathoracic in-tra-tho-rac-ic Intravascular in-tra-vas-cu-lar Intrinsically in-trin-si-cal-ly Introductorily in-tro-duc-to-ry Intromissible in-tro-mis-si-ble Introspectionism in-tro-spec-tion-ism Introversible in-tro-ver-si-ble Intuitionism in-tu-i-tion-ism Intuitivism in-tu-i-tiv-ism Intuitivist in-tu-i-tiv-ist Intussusception in-tus-sus-cep-tion Invagination in-vag-i-na-tion Invalidities in-val-id-i-ty Inventoriable in-ven-to-ri-able Invertebracy in-ver-te-bra-cy Investigable in-ves-ti-ga-ble Investigatable in-ves-ti-gat-able Investigator in-ves-ti-ga-tor Inveteracy in-vet-er-a-cy Inveterateness in-vet-er-ate-ness Invigorating in-vig-o-rat-ing Inviolability in-vi-o-la-ble Inviolacy in-vi-o-la-cy Invitational in-vi-ta-tion-al Invitatories in-vi-ta-to-ry Involucriform in-vo-lu-cri-form Invulnerability in-vul-ner-a-ble Iodinophil io-din-oph-i-lous Ionophoreses ion-o-pho-re-sis Iontophoreses ion-to-pho-re-sis Ipsedixitism ip-se-dix-it-ism Ipsilateral ip-si-lat-er-al Iridologies ir-i-dol-o-gy Irradiation ir-ra-di-a-tion Irradicable ir-rad-i-ca-ble Irrationalism ir-ra-tio-nal-ism Irreality ir-re-al-i-ty Irreconcilability ir-rec-on-cil-able Irrecoverable ir-re-cov-er-able Irrecusable ir-re-cu-sa-ble Irreductible ir-re-duc-ti-ble Irrefragability ir-re-fra-ga-ble Irrelevancies ir-rel-e-van-cy Irreparable ir-rep-a-ra-ble Irreproducibility ir-re-pro-duc-ible
5 Syllable Words Syllables Irresoluble ir-re-sol-u-ble Irresponsibility ir-re-spon-si-ble Irrevocability ir-rev-o-ca-ble Irrigational ir-ri-ga-tion-al Irrigationist ir-ri-ga-tion-ist Irrotational ir-ro-ta-tion-al Isabelita is-a-be-li-ta Iscariotic is-car-i-ot-ic Ischiocerite is-chi-oc-er-ite Ischiopodite is-chi-op-o-dite Isidiiferous isid-i-if-er-ous Isidorean is-i-do-ri-an Islamophobe is-lam-o-pho-bia Islandology is-land-ol-o-gy Isoalloxazine iso-al-lox-a-zine Isocarboxazid iso-car-box-az-id Isodiametric iso-di-a-met-ric Isogeneratae iso-gen-er-a-tae Isolability iso-la-bil-i-ty Isoproterenol iso-pro-ter-e-nol Isothiocyanate iso-thio-cy-a-nate Istiophorus is-ti-oph-o-rus Itacolumite it-a-col-u-mite Itineraria itin-er-ar-i-um Ixiaceae ix-i-a-ce-ae Iztapalapa iz-ta-pa-la-pa