| 1 | Finnish | opastus | guiding, instruction |
| 2 | Finnish | opastaa | to guide, help; to mentor; to lead |
| 3 | Finnish | opas | guide; guide book, guide |
| 4 | Finnish | äs | ess; argh |
| 5 | German | ās | — |
| 6 | French | as | ace; as; second-person singular present... |
| 7 | Italian | asso | ace; A piece or side having a single dot |
| 8 | German | ass | Switzerland and Liechtenstein standard spelling... |
| 9 | English | ace | A single point or spot on a playing card or die;... |
| 10 | English | asexual | Nonsexual in nature, unmarked by sexual activity;... |
| 11 | English | ā- | — |
| 12 | Middle English | a- | up, out, away; of; on, in |
| 13 | Middle French | a- | — |
| 14 | Latin | Ad | — |
| 15 | Latin | illic | he, she, it, yonder, that, overthere; in that... |
| 16 | Latin | ille | that; those; "; demonstrative pronoun "; that... |
| 17 | Latin | olle | Archaic form of ille |
| 18 | Proto-Italic | *olnos | — |