| 1 | English | vain | Overly proud of oneself, especially concerning... |
| 2 | Old French | vain | — |
| 3 | Latin | vānus | — |
| 4 | Italian | vano | vain, useless, idle; quaint; space, opening,... |
| 5 | Italian | vanare | Alternative form of vaneggiare |
| 6 | Romanian | -re | -ing, -ation |
| 7 | Latin | -āre | — |
| 8 | Proto-Italic | -āō | Forms primarily denominative verbs |
| 9 | Proto-Indo-European | -eh₂yéti | Creates iterative/ frequentative/ intensive... |
| 10 | Proto-Indo-European | -yéti | Creates intransitive, often deponent,... |
| 11 | Proto-Indo-European | yé- | — |
| 12 | Chichewa | iye | he, she |