French word sourdre comes from Latin regere, Latin sub- (Sub-.), Old French surgō
| Dictionary entry | Language | Definition |
|---|---|---|
| regere | Latin (lat) | |
| sub- | Latin (lat) | Sub-. |
| surgō | Old French (fro) | |
| surrigo | Latin (lat) | |
| surgo | Latin (lat) | (intransitive) I rise, get up, I arise. |
| sordre | Old French (fro) | |
| sourdre | French (fra) | (formal, intransitive) to well up. |