| 词汇 | serenity |
| 词根词缀 | 词源： 1530s, of weather, 1590s, of persons," from Fr. sérénité, from L. serenitatem (nom. serenitas) "clearness, serenity," from serenus (see serene). Earliest use (mid-15c.) was as a title of honor for kings. |
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