sleepless
adj.
early 15c., from sleep, n. + -less. Old English had slæpleas but the modern word seems to be a re-formation. Similar formation in German schlaflos, Dutch slapeloos. Related: Sleeplessly; sleeplessness.
| 词汇 | sleepless |
| 词根词缀 | Online Etymology Dictionary sleepless adj. early 15c., from sleep, n. + -less. Old English had slæpleas but the modern word seems to be a re-formation. Similar formation in German schlaflos, Dutch slapeloos. Related: Sleeplessly; sleeplessness. |
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