somniloquy
n.
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.
〔李〕n.梦话，梦呓 [loqu=to speak] ←somn（i）-[L] =sleep睡
〔蒋〕[somn睡眠，-i-，loqu说，-y名词后缀;’睡梦中说话”] 梦语，梦呓，说梦话