improve: [16] The -prove of improve has no direct connection with the verb prove, although the two have come to resemble each other over the centuries. It comes ultimately from late Latin prōde ‘advantageous’ (source of English proud). This gave Old French prou ‘profit’, which was combined in Anglo-Norman with the causative prefix em- to produce the verb emprouer. This originally meant ‘turn to a profit, turn to one’s advantage’, a sense which survives in English in one or two fossilized contexts such as ‘improve the shining hour’. Modern English ‘make or get better’ developed in the 17th century. => proud
improve (v.)
late 15c., "to use to one's profit, to increase (income)," from Anglo-French emprouwer "to turn to profit" (late 13c.), from Old French en-, causative prefix, + prou "profit," from Latin prode "advantageous" (see proud). Spelling with -v- was rare before 17c. Meaning "to raise to a better quality or condition" first recorded 1610s. Phrase improve the occasion retains the etymological sense. Meaning "to turn land to profit" (by clearing it, erecting buildings, etc.) was in Anglo-French (13c.) and was retained in the American colonies.
例文
1. You can improve your chances of profit by sensible planning.
合理的な計画を通じて利益の機会を高めることができます。
2.Massage is used to relax muscles，relieve stress and improve the circulation.
マッサージは筋肉をリラックスさせ、ストレスを緩和し、血液循環を促進することができる。
3.To improve hand-eye co-ordination，practise throwing and catching balls.
手目の調整能力を高めるには、投球とキャッチボールを練習する。
4.Lights clipped onto life jackets improve the chances of rescue.
救命胴衣に取り付けられていないランプが救助の可能性を高めている。
5.As soon as relations improve they will be allowed to go.