trough

• n.シンク、トラフ；トラフ期間；フィードトラフ；低気圧

古英語のtrog（木製の容器、皿）から、原ゲルマン語*trugaz（木工品）から、PIE*teru（木、材木）から、語源は木、トレイと同じ。

trough

trough: [OE] Etymologically, a trough is something made out of ‘wood’. Its ultimate source is Indo-European *drukós, a derivative of the base *dru- ‘wood, tree’ (source also of English tree). This passed into prehistoric Germanic as *trugaz, which has since diversified into German and Dutch trog, Swedish tr?g, Danish trug, and English trough. English trug ‘shallow basket’ [16] is a variant of trough.
=> tray, tree, trug

trough (n.)

Old English trog "wooden vessel, tray, hollow vessel, canoe," from Proto-Germanic *trugaz (cognates: Old Frisian, Old Saxon, Old Norse trog, Middle Dutch troch, Dutch trog, Old High German troc, German trog), from PIE *dru-ko-, from root *dru-, *deru- "wood, tree" (see tree (n.)). Originally pronounced in English with a hard -gh- (as in Scottish loch); pronunciation shifted to "-ff," but spelling remained.

1. The old stone cattle trough still sits by the main entrance.

古くなった石製牛の食道は玄関に置かれたままだ。

2.The trough of low pressure extended over about 1000 kilometres.

低圧槽は約1000キロ延びている。

3.American bank shares have risen by 60%since their trough last October.

米国の銀行株は昨年10月に下落して以来60%上昇した。dd>

4.As the wave bore down on us，the trough deepened.

波が私たちに押し寄せると、谷は深まった。

5.They led the workhorses to the watering trough .

彼らは耕馬を飲用水タンクに連れて行って飲用水を飲む。