French word rigole comes from Proto-Indo-European *rek-, and later Proto-Indo-European *h₃réǵeti (To be straightening, to be setting upright.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *rek- | Proto-Indo-European (ine-pro) | |
| *h₃réǵeti | Proto-Indo-European (ine-pro) | To be straightening, to be setting upright. |
| rego | Latin (lat) | I guide, steer. I oversee, manage. I rule, govern. |
| regula | Latin (lat) | Rule, bar. |
| regel | Middle Dutch (dum) | |
| regol | Old French (fro) | |
| rigole | French (fra) | (agriculture) furrow, channel (small trench cut in the soil or rock for irrigation or for planting seeds). (figurative) furrow (deep wrinkle, usually in the face). (geography) groove, fissure, hollow (naturally occurring depression or furrow, often due to a meteorological event). Rivulet, streamlet. |