Middle English word regretten comes from Old French re- (Re- (again; once more).), Proto-Indo-European *ǵʰreh₁d-, French reconqueste, Old French *grater, Old French *greter, French greter, Old French greter
| Dictionary entry | Language | Definition |
|---|---|---|
| re- | Old French (fro) | Re- (again; once more). |
| *ǵʰreh₁d- | Proto-Indo-European (ine-pro) | |
| reconqueste | French (fra) | |
| *grater | Old French (fro) | |
| *greter | Old French (fro) | |
| greter | French (fra) | |
| greter | Old French (fro) | |
| *grētaną | Proto-Germanic (gem-pro) | To weep, to cry. |
| *grātan | Frankish (frk) | To weep, mourn, lament. |
| regrater | Old French (fro) | |
| regretten | Middle English (enm) |