sleep

• vi. 眠る、眠る
• n.スリープ
• n.（睡眠）人の名前；（英）スリップ。

古英語のslaepan「眠る」から。原語ゲルマン語の *slepana「眠る」、おそらくPIE *sleu「気力がない、弱い、疲れた」から来ており、語源的にはslumber「まどろむ、遅い、たるむ」と同じ。

sleep

sleep: [OE] Sleep comes from a prehistoric West Germanic *sl?pan, which also produced German schlafen and Dutch slapen. Its ancestry has not been pieced together in detail, but it is related to Dutch slap ‘sluggish’ and German schlaff ‘slack, loose’, and a link has been suggested with Lithuanian slabnas ‘weak’.

sleep (v.)

Old English sl?pan "to be or fall asleep; be dormant or inactive" (class VII strong verb; past tense slep, past participle sl?pen), from Proto-Germanic *slepan (cognates: Old Saxon slapan, Old Frisian slepa, Middle Dutch slapen, Dutch slapen, Old High German slafen, German schlafen, Gothic slepan "to sleep"), from PIE root *sleb- "to be weak, sleep" (cognates: Old Church Slavonic slabu "lax, weak," Lithuanian silpnas "weak"), which perhaps is connected to the root of slack (adj.). Sleep with "do the sex act with" is in Old English:

Gif hwa f?mnan beswice unbeweddode, and hire mid sl?pe ... [Laws of King Alfred, c.900]

Related: Slept; sleeping. Sleep around first attested 1928.

sleep (n.)

Old English sl?p "sleep, sleepiness, inactivity," from Proto-Germanic *slepaz, from the root of sleep (v.); compare cognate Old Saxon slap, Old Frisian slep, Middle Dutch sl?p, Dutch slaap, Old High German slaf, German Schlaf, Gothic sleps.

Personified in English from late 14c., on model of Latin Somnus), Greek Hypnos. Figurative use for "repose of death" was in Old English; to put (an animal) to sleep "kill painlessly" is recorded from 1923 (a similar imagery is in cemetery). Sleep deprivation attested from 1906. Sleep-walker "somnambulist" is attested from 1747; sleep-walking is from 1840. To be able to do something in (one's) sleep "easily" is recorded from 1953.

1. I didn 't get a wink of sleep on the aeropane.

私は飛行機の中で目を閉じていません。

2.He looked at Ellen，breathing evenly in her sleep .

彼はエレンを見て、彼女は呼吸を均一にして眠っている。

3.Jem was full of beans after a long sleep .

ジェムはよく寝てからまた元気になった。

4.I find that I need very little sleep these days.

最近は寝る時間が少ないことに気づきました。

5.She had woken me out of a sound sleep .

彼女は私を熟睡から起こした。