| Word | Meaning | Occurrences |
|---|---|---|
| illusio | mockery, illusion | 4 |
| illusor | scoffer, mocker | 11 |
| illustratio | illustration, lighting up | 2 |
| illustris | clear, bright | 2 |
| illustro | to light up, make light | 4 |
| illuvies | filth, uncleanness | 1 |
| illyricum | Illyricum | 2 |
| imago | image, likeness | 74 |
| imbecillis | weak, feeble | 7 |
| imbecillitas | feebleness, infirmity | 4 |
| imbecillus | weak, feeble | 1 |
| imber | rain | 35 |
| imitator | imitator, follower | 14 |
| imitor | to imitate, copy | 19 |
| immaculatus | unstained, spotless | 85 |
| immanis | monstrous, enormous | 1 |
| immarcescibilis | unfading | 4 |
| immaturus | untimely, unripe | 1 |
| immemor | unmindful, forgetful | 3 |
| immemoratio | forgetfulness, unmindfulness | 1 |
| immensus | immeasurable, boundless | 15 |
| immineo | to be imminent, threaten | 18 |
| imminuo | to less, diminish | 11 |
| immisericors | pitiless, merciless | 1 |
| immissio | sending upon, intervention | 1 |
| immitis | harsh, rough | 3 |
| immitto | to put in, insert | 37 |
| immo | on the contrary, rather | 8 |
| immobilis | immovable | 15 |
| immobilitas | immovableness | 2 |
| immoderatus | boundless, immoderate | 1 |
| immolo | to immolate, sacrifice | 193 |
| immortalis | undying, immortal | 5 |
| immortalitas | immortality | 11 |
| immunditia | uncleanness, impurity | 61 |
| immundus | unclean | 172 |
| immunis | free, immune | 8 |
| immunitas | freedom, exemption | 1 |
| immunitus | unfortified, undefended | 1 |
| immutabilis | unchangeable | 1 |
| immutatio | interchange, substitution | 3 |
| immuto | to change, alter | 44 |
| imparatus | not ready, unprepared | 2 |
| impartior | 2 | |
| impatiens | impatient, intolerant | 5 |
| impatientia | lack of endurance, impatience | 1 |
| impedimentum | hindrance, impediment | 4 |
| impedio | to hinder, prevent | 19 |
| impeditus | hindered, embarrassed | 1 |
| impello | to push, drive | 6 |
| impendeo | to hang over, impend | 2 |
| impendium | outlay, cost | 2 |
| impendo | to weigh out, lay out | 6 |
| impensa | expense, cost | 9 |
| imperator | commander in chief, general | 1 |
| imperatorius | belonging to a general, imperial | 1 |
| imperfectus | unfinished, incomplete | 1 |
| imperitia | inexperience, ignorance | 2 |
| imperitus | inexperienced, unversed | 4 |
| imperium | command, rule | 92 |
| impero | to command, order | 85 |
| impertio | to share with, give a part | 2 |
| impertior | to share with, impart | 3 |
| impetigo | scabby eruption of the skin | 2 |
| impetro | to achieve, obtain | 4 |
| impetus | attack, violence | 63 |
| impie | impiously, wickedly | 20 |
| impietas | irreverence, ungodliness | 55 |
| impiger | diligent | 1 |
| impingo | to thrust upon, strike against | 15 |
| impinguo | to fatten | 12 |
| impius | irreverent, wicked | 282 |
| implano | to deceive, delude | 2 |
| impleo | to fill, fulfill | 343 |
| implico | to entangle, involve | 4 |
| imploro | to invoke with tears, appeal to | 1 |
| impluo | 1 | |
| impoenitens | impenitent | 2 |
| impolitus | unpolished, rough | 4 |
| impollutus | unstained | 4 |