English word plateau comes from Proto-Indo-European *pleth₂-, Proto-Indo-European *pleth₂os, and later Proto-Indo-European *pléth₂us (Flat, broad.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *pleth₂- | Proto-Indo-European (ine) | |
| *pleth₂os | Proto-Indo-European (ine) | |
| *pléth₂us | Proto-Indo-European (ine) | Flat, broad. |
| πλατεῖα | Ancient Greek (grc) | |
| *plattus | Latin (lat) | Flattened. |
| plat | Middle French (frm) | |
| plat | French (fr) | Flat A flat area of ground; a flat thing; a flat dish or receptacle. Dish or course (e.g. served in a restaurant). |
| plateau | French (fr) | (geography) plateau. Flat area. Stage (in theatre); set (of television broadcast). Tray. |
| plateau | English (en) | (dated) An ornamental dish for the table; a tray or salver.. (sports, broadcasting) A notable level of attainment or achievement.. A comparatively stable level in something that varies.. A largely level expanse of land at a high elevation; tableland. (intransitive) To reach a stable level; to level off. |