yawn

1. PIE base *ghai- / *ghi- "yawn, gape" => chasm (from Greek khaskein / khainein "yawn, gape").
2. PIE base *ghai- / *ghi- "yawn, gape" => hiatus (from Latin hiare "yawn, gape").
3. PIE base *ghai- / *ghi- "yawn, gape" => gap, gape, yawn.

yawn 吹欠

来自PIE*ghai,张嘴，打呵欠，词源同gas,chaos,gape.

yawn

yawn: [OE] Yawn goes back ultimately to the Indo-European base *ghei-, *ghi-, which also produced Greek kháskein ‘gape’ (a close relative of English chasm [17]) and Latin hiāre ‘gape, yawn’ (source of English hiatus [16]). The base passed into prehistoric Germanic as *gai-, *gi-, whose surviving descendants are German gähnen, Dutch geeuwen, and English yawn. English gap and gape probably come from an extension of the same Indo-European base.
=> chasm, gap, gape, hiatus

yawn (v.)

c. 1300, yenen, yonen, from Old English ginian, gionian "open the mouth wide, yawn, gape," from Proto-Germanic *gin- (cognates: Old Norse gina "to yawn," Dutch geeuwen, Old High German ginen, German gähnen "to yawn"), from PIE *ghai- "to yawn, gape" (cognates: Old Church Slavonic zijajo "to gape," Lithuanian žioju, Czech zivati "to yawn," Greek khainein, Latin hiare "to yawn, gape," Sanskrit vijihite "to gape, be ajar"). Modern spelling is from 16c. Related: Yawned; yawning.

yawn (n.)

"act of yawning," 1690s, from yawn (v.). Meaning "boring thing" is attested from 1889.

1. She stretched her arms out and gave a great yawn.

她伸了个懒腰，打了个大哈欠。

2. She makes no attempt to stifle a yawn.

她忍不住打了个哈欠。

3. The debate was a mockery. A big yawn.

这场辩论实在可笑。简直是无聊透顶。

4. Rosanna stifled a huge yawn.

罗莎娜想打个大哈欠，但强忍住了。

5. The concert was a predictable yawn.

果不其然，那场音乐会很乏味。