- placid
[placid 词源字典]
- placid: see please
[placid etymology, placid origin, 英语词源] - placid (adj.)
- 1620s, from French placide (15c.) and directly from Latin placidus "pleasing, peaceful, quiet, gentle, still, calm," from placere "to please" (see please). Related: Placidly; placidness.