| 1 | Welsh | fegan | vegan |
| 2 | English | Vegan | Relating to Vega; Someone from Vega, which is... |
| 3 | English | vegetarian | A person who does not eat animal flesh, or, in... |
| 4 | English | vegetable | Any plant; A plant raised for some edible part of... |
| 5 | Middle English | vegetable | — |
| 6 | Old French | vegetable | — |
| 7 | Latin | vegetabilis | animating, enlivening, vivifying; able to produce... |
| 8 | Latin | vegeto | I arouse, enliven, quicken, animate, invigorate;... |
| 9 | Latin | vegetus | enlivened, lively, animated, vigorous, active,... |
| 10 | Latin | vegeo | I move, excite, quicken, arouse; I am lively or... |
| 11 | Proto-Italic | wegeō | to be active, lively |
| 12 | Proto-Italic | wegejō | — |
| 13 | Proto-Indo-European | woǵ-éye- | — |
| 14 | Proto-Indo-European | weǵ- | lively, awake; strong |