sleepless的词源

英文词源

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.

中文词源

sleepless：无眠的，失眠的

sleep,睡觉，睡眠，-less,无，没有。

该词的英语词源请访问找单词词源英文版：sleepless 词源，sleepless 含义。