| Word | Meaning | Occurrences |
|---|---|---|
| ulai | Ulai | 2 |
| ulam | Ulam | 4 |
| ulciscor | to avenge | 35 |
| ulcus | sore, ulcer | 15 |
| ullus | any, anyone | 82 |
| ulmus | elm tree | 1 |
| ulna | elbow, arm | 5 |
| ulterius | further, any longer | 2 |
| ultimus | farthest, uttermost | 13 |
| ultio | vengeance, revenge | 55 |
| ultor | punisher, avenger | 12 |
| ultra | beyond, further | 271 |
| ultro | beyond, of one's own accord | 9 |
| ultroneus | of one's own accord | 1 |
| ulula | owl | 1 |
| ululatus | howling, wailing | 21 |
| ululo | to yell, howl | 40 |
| umbilicus | navel, middle | 6 |
| umbra | shade, shadow | 75 |
| umbraculum | shade, shadow | 14 |
| umquam | at any time, ever | 26 |
| una | at the same time, together | 3 |
| unanimis | of one mind, unanimous | 16 |
| unanimiter | with one mind, unanimously | 14 |
| uncia | a twelfth, inch | 2 |
| uncinus | hook | 9 |
| unctio | anointing | 24 |
| unda | wave, billow | 1 |
| unde | whence, wherefore | 199 |
| undecim | eleven | 28 |
| undecimus | eleventh | 26 |
| undecumque | from wherever | 1 |
| undique | from all sides, everywhere | 33 |
| ungo | to anoint | 106 |
| unguentaria | female dealer in ointments | 1 |
| unguentarius | dealer in unguents, perfumer | 3 |
| unguentum | ointment | 55 |
| unguis | fingernail, toenail | 4 |
| ungula | hoof, claw | 23 |
| unicolor | of one color | 1 |
| unicornis | one-horned, unicorn | 5 |
| unicus | only, sole | 14 |
| unigenitus | only-begotten | 20 |
| unio | unity, union | 1 |
| unitas | oneness, unity | 4 |
| universitas | whole, aggregate | 3 |
| universus | all, whole | 1006 |
| unus | one | 1782 |
| upupa | hoopoe | 2 |
| ur | Ur | 4 |
| urai | Urai | 1 |
| urbanus | Urbanus | 2 |
| urbs | city | 380 |
| urceus | pitcher, water pot | 6 |
| uredo | blast, blight | 2 |
| urgeo | to press, be urgent | 10 |
| uri | Uri | 8 |
| uria | Uria, Uriah | 1 |
| urias | Urias, Uriah | 40 |
| uriel | Uriel | 4 |
| urina | urine | 2 |
| urna | vessel for drawing water, water pot | 4 |
| uro | to burn | 27 |
| ursa | she-bear | 3 |
| ursus | bear | 15 |
| urtica | nettle, stinging nettle | 4 |
| us | us | 1 |
| usque | up to, as far as | 1315 |
| usquequaque | continually, everywhere | 5 |
| usquequo | how long, until | 59 |
| usura | interest, usury | 18 |
| usurpo | to seize | 2 |
| usus | use, enjoyment | 46 |
| ut | that, when | 5705 |
| utcumque | somehow, in one way or another | 1 |
| utensilis | useful, utensil | 8 |
| uter | bag, bottle | 35 |
| uterinus | born of the same mother | 2 |
| uterque | each of two, both | 149 |
| uterus | womb, belly | 79 |