somniloquy (n.)youdaoicibaDictYouDict[somniloquy 词源字典]
talking in one's sleep, 1847, from somni-, "sleep" + -loquy, from Latin loqui "to speak" (see locution). Related: Somniloquence (1814); somniloquent (1804, Coleridge); somniloquist; somniloquous; somniloquize.[somniloquy etymology, somniloquy origin, 英语词源]