| Word | Meaning | Occurrences |
|---|---|---|
| arbitror | to think, judge | 52 |
| arbor | tree | 100 |
| arbustum | place where trees are planted, tree | 4 |
| arca | chest, box | 231 |
| arcanus | hidden, secret | 9 |
| arcarius | treasurer, controller of public monies | 3 |
| arceo | to shut up, enclose | 1 |
| arceuthinus | of the juniper tree | 1 |
| archangelus | archangel | 4 |
| archelaus | Archelaus | 2 |
| archi | Archi | 1 |
| archippus | Archippus | 4 |
| archisynagogus | ruler of the synagogue | 12 |
| architectus | master builder, architect | 5 |
| architriclinus | chief steward | 6 |
| arcto | to bind, obligate | 4 |
| arcturus | Arcturus, the north | 4 |
| arctus | narrow, confined | 4 |
| arcus | bow, rainbow | 72 |
| ardens | burning, fiery | 28 |