| Latin | English |
| hic indeclinable | here |
| hiems hiemis, f | winter, storm |
| hinc indeclinable | from here, hence, henceforth |
| hodie indeclinable | today |
| homo hominis, m | man, person |
| honor honoris, m | honour, esteem, glory |
| hora horae, f | hour |
| hortor hortari, hortatus sum | urge, encourage |
| hospes hospitis, m | guest, host |
| hostis hostis, m | enemy |
| huc indeclinable | here, to this place |
| humus humi, f | ground, earth |
| iaceo iacere, iacui | lie (down) |
| iacio iacere, ieci, iactus (in compounds -icio) | throw |
| iam indeclinable | now, already |
| non iam (indeclinable) | no longer |
| ibi indeclinable | there, then |
| idem eadem, idem | the same |
| idoneus idonea, idoneum | suitable, convenient |
| igitur indeclinable | therefore, and so |
| ignis ignis, m | fire |
| ignoro ignorare, ignoravi, ignoratus | do not know, be ignorant, misunderstand |
| ille illa, illud | that, he, she, it |
| illic indeclinable | there |
| impedio impedire, impedivi, impeditus | delay, hinder, prevent |
| imperator imperatoris, m | emperor, general, leader |
| imperium imperii, n | command, power, empire |
| impero imperare, imperavi, imperatus +dat | order, command |
| impetus impetus, m | attack, impulse |
| in + abl | in, on |
| in + acc | into, onto, against, towards |
| incendium incendii, n | fire |
| incendo incendere, incendi, incensus | burn, set on fire, inflame, rouse |
| incipio incipere, incepi, inceptus | begin |
| incito incitare, incitavi, incitatus | urge on, arouse, encourage |
| inde indeclinable | from there, thereupon, next |
| infero inferre, intuli, illatus/inlatus | inflict, bring to, cause, carry against |
| signa inferre | attack, charge |
| bellum inferre | make war on |
| infra indeclinable | below |
| ingenium ingenii, n | character, ability |
| ingens ingentis | huge |
| ingredior ingredi, ingressus sum | enter, undertake |
| inimicus inimici, m | (personal) enemy |
| iniquus iniqua, iniquum | unfair, unjust, unfavourable |
| initium initii, n | beginning |
| iniuria iniuriae, f | injustice, injury, wrong |
| inopia inopiae, f | shortage, lack, poverty |
| inquam inquit, inquiunt | say |
| insidiae insidiarum, f pl | ambush, trap, trick |
| insignis insigne | distinguished, glorious |
| inspicio inspicere, inspexi, inspectus | look at, inspect, examine |
| instruo instruere, instruxi, instructus | draw up, prepare, equip, supply |
| insula insulae, f | island |
| intellego intellegere, intellexi, intellectus | understand, perceive, realise |
| inter, intra + acc | between, among, inside, within |
| interea, interim indeclinable | meanwhile, in the meantime |
| interficio interficere, interfeci, interfectus | kill |
| intro intrare, intravi, intratus | enter |
| invenio invenire, inveni, inventus | find, discover |
| invito invitare, invitavi, invitatus | invite |
| invitus invita, invitum | unwillling, reluctant |
| ipse ipsa, ipsum | -self |
| ira irae, f | anger |
| iratus irata, iratum | angry |
| is ea, id | this, that, he, she, it |
| ita indeclinable | in this way, so, thus |
| ita vero indeclinable | yes |
| itaque indeclinable | and so, therefore |
| iter itineris, n | journey, march, way |
| iterum indeclinable | again |
| iubeo iubere, iussi, iussus | order, command |
| iudex iudicis, m and f | judge, juror |
| iungo iungere, iunxi, iunctus | join, unite, fasten |
| iustus iusta, iustum | right, just, lawful, complete |
