| 1 | Italian | Benevento | — |
| 2 | Latin | beneventum | nominative neuter singular of beneventus;... |
| 3 | Latin | bene | well; properly, exactly; agreeably, favorably |
| 4 | Latin | bonus | good, honest, brave, noble, kind, pleasant;... |
| 5 | Old Latin | duenos | Alternative form of duonus |
| 6 | Proto-Italic | dwenos | good |
| 7 | Proto-Indo-European | dew- | to show favour, revere; to fail, to lag, to be... |