1670s, a back-formation from placation or else from Latin placatus "soothed, quiet, gentle, calm, peaceful," past participle of placare "to calm, appease, quiet, soothe, assuage," related to placere "to please" (see please). Related: Placated; placating; placatingly.
实用例句
1. The concessions did little to placate the students.
让步根本未能平息学生的愤怒。
来自《权威词典》
2. Even a written apology failed to placate the indignant hostess.
