| 1 | Middle English | prowesse | — |
| 2 | Old French | proeche | chivalry; bravery; valour |
| 3 | Old French | preu | brave; valiant, chivalrous |
| 4 | Late Latin | prode | profitable, useful; useful; valuable |
| 5 | Latin | prosum | I am useful or of use, do good, help, benefit,... |
| 6 | Latin | prō- | — |
| 7 | Proto-Italic | *pro- | — |
| 8 | Proto-Indo-European | pro- | toward, forward |
| 9 | Proto-Indo-European | por- | to give birth; forward, through; going, passage |
| 10 | Proto-Indo-European | per- | before, in front; first; to go through |
| 11 | Proto-Indo-European | pr̥tós | passed , crossed |