drowsy

• adj.眠くなる；沈黙する；催眠状態になる

PIE *dhreu の「落とす、落ちる」が語源で、語源的には drop, dreary と同じ。

drowsy

drowsy: [15] The etymological notion underlying drowsy seems to be of heaviness, with eyelids falling and the head nodding over the chest. The word probably comes from a Germanic base *drūs-, which also produced drūsian, an Old English verb meaning ‘be slow and sleepy’ which did not survive into the Middle English period (modern English drowse [16] is a back-formation from drowsy). A variant of this base is the possible source of English dreary and drizzle.
=> dream, drizzle

drowsy (adj.)

1520s, probably ultimately from Old English drusan, drusian "sink," also "become languid, slow, or inactive" (related to dreosan "to fall"), from Proto-Germanic *drus- (see dreary). But there is no record of it in Middle English. Related: Drowsily; drowsiness.

1. He had been feeling drowsy ，the effect of an unusually heavy meal.

彼はずっとぼんやりしていて、これはスーパーディナーを食べた結果です。

2.I felt dopey and drowsy after the operation.

手術後、私はうとうとして、ぼんやりしていました。

3.The tablets may make you feel drowsy .

この錠剤はあなたを眠らせてしまうかもしれません。

4.Exhaust fumes made him drowsy and brought on a headache.

排気ガスが彼を燻して昏睡状態にし、頭痛を引き起こした。

5.It was a warm,quiet, drowsy afternoon.

それは暖かくて、静かで眠たくなる午後だった。