placidWiktionary 原文英美adj.平静的，温和的，沉着的，平稳的中文释义来自 ECDICT词源链拉丁语Latin约前 75–公元 3 世纪placidus‘peaceful, calm, placid’↓ 派生法语Frenchplacide↓ 派生英语Englishplacid词源说明Borrowed from French placide, from Latin placidus (“peaceful, calm, placid”), from placeō (“please, satisfy”).释义形容词adjective1Calm and quiet; peaceful; tranquil.同族词派生词 6placidly·Placidyl·unplacid·