| 词汇 | somnambulism |
| 词根词缀 | 词源： 1794 (as somnambulation), from Mod.L. somnambulus "sleepwalker," from L. somnus "sleep" (see somnolence) + ambulare "to walk" (see amble). Won out over noctambulation. To talk in one's sleep is somniloquence (1841). |
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