| 1 | Irish | umhal | humble, submissive; dutiful, obedient; ready,... |
| 2 | Old Irish | umal | humble; obedient; obedient, submissive, subject;... |
| 3 | Latin | humilis | low, lowly, small, slight; shallow; base, mean,... |
| 4 | Latin | -ilis | -ile |
| 5 | Proto-Italic | -elis | — |
| 6 | Proto-Indo-European | -elis | — |
| 7 | Proto-Indo-European | -lós | Forms agent nouns from verbal roots |