French word rouge comes from Proto-Indo-European *h₁rewdʰ-, Latin rubere, and later Proto-Indo-European *h₁rudʰrós (Red.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₁rewdʰ- | Proto-Indo-European (ine-pro) | |
| rubere | Latin (lat) | |
| *h₁rudʰrós | Proto-Indo-European (ine-pro) | Red. |
| *h₁rudʰéh₁ti | Proto-Indo-European (ine-pro) | To be red. |
| *ruβros | Proto-Italic (itc-pro) | Red. |
| *ruðēō | Proto-Italic (itc-pro) | |
| rubeo | Latin (lat) | I am red or ruddy.. I grow red, redden; color up, blush. |
| rubrum | Latin (lat) | |
| rouge | Old French (fro) | |
| rouge | Middle French (frm) | Red Red. |
| rouge | French (fra) | Red Red (left-wing, socialist). Red (of a red color). |