| 1 | English | benefit | An advantage; help or aid from something; A... |
| 2 | Middle English | benefytt | — |
| 3 | Middle English | benfet | — |
| 4 | Anglo-Norman | benfet | well-done |
| 5 | Old French | bienfet | — |
| 6 | Old French | bienfaire | to do good, do well |
| 7 | Old French | bien | well; indeed; possession; object of value |
| 8 | Latin | bene | well; properly, exactly; agreeably, favorably |
| 9 | Latin | bonus | good, honest, brave, noble, kind, pleasant;... |
| 10 | Old Latin | duenos | Alternative form of duonus |
| 11 | Proto-Italic | dwenos | good |
| 12 | Proto-Indo-European | dew- | to show favour, revere; to fail, to lag, to be... |