irrigate

• vt.灌漑する；すすぐ；リフレッシュする
• vi.灌漑する；洗い流す

ir-「入る」、-「作る」、-rig「雨」、語源はrainと同じ。spelling fain, mainと比較する。

irrigate (v.)

"supply land with water," 1610s, from Latin irrigatus, past participle of irrigare "lead water to, refresh, irrigate, flood," from assimilated form of in- "into, in, on, upon" (see in- (2)) + rigare "to water, to moisten," of uncertain origin, perhaps cognate with rain. Related: Irrigated; irrigating. In Middle English it was an adjective, "watered, flooded" (mid-15c.).

1. He also wants to use the water to irrigate barren desert land.

彼もこれらの水で砂漠を灌漑しようとした。

2.The farmer dug several trenches to irrigate the rice fields.

この農民はいくつかの溝を掘って田んぼを灌漑した。

3.They have built canals to irrigate the desert.

砂漠を灌漑するために水路を作った。

4.None of the water from Lake Powell is used to irrigate the area.

パウエル湖の水はこの地域を灌漑するために一滴も使われていない。

5.Some plains rivers regularly fertillize and irrigate surrounding areas with their floods.

いくつかの平坦な川がその洪水で周囲の地域を肥やし、灌漑している。