retrench

• vt.削除する；削減する；引き締める
• vi. 節約する；引き締める

re,後方、後方、-trench, cut, split, 語源的にはtruncate, trunkと同じ。 retrial...再審、再検討する

retrench

retrench: [16] Retrench originally meant literally ‘dig a new trench as a second line of defence’. It was borrowed from early modern French retrencher, a descendant of Old French retrenchier. This was a compound verb formed from the prefix re- ‘again’ and trenchier ‘cut off’ (source of English trench, trenchant, etc). The standard present-day sense of retrench, ‘cut back, economize’, first recorded in the 17th century, is a return to the underlying meaning of French retrencher.
=> trench, trenchant

retrench (v.1)

1590s, "dig a new trench as a second line of defense," 1590s, probably a back-formation from retrenchment in the military sense. Related: Retrenched; retrenching.

retrench (v.2)

"cut off, cut down, pare away" (expenses, etc.), 1620s, from obsolete French retrencher "to cut off, lessen, shorten" (Modern French retrancher, Old French retrenchier), from re- "back" (see re-) + Old French trenchier "to cut" (see trench). Related: Retrenched; retrenching.

1. Shortly afterwards，cuts in defence spending forced the aerospace industry to retrench .

間もなく、国防費の削減は航空宇宙産業に支出の緊縮を迫った。

2.Inflation has forced us to retrench .

インフレのために支出を緊縮せざるを得なかった。

3.The mess of Wall Street means the families have to retrench .

ウォール街の激動は、多くの家庭にとって新しいベルトを締めて暮らすことを意味している。

4.As business is bad these days，we have to retrench .

最近の不況で、私たちは支出を緊縮せざるを得なかった。

5.Why don 't you retrench then-scrape up,hoard,economise？

では、なぜ節約しないのですか。少し貯金して、少し貯金して、倹約して使いますか。