approve: [14] The Latin source of approve, approbāre, was a derivative of probāre, source of English prove. Probāre originally meant ‘test something to find if it is good’ (it was based on Latin probus ‘good’) and this became extended to ‘show something to be good or valid’. It was this sense that was taken up by approbāre and carried further to ‘assent to as good’. When English acquired the word, via Old French aprover, it still carried the notion of ‘demonstrating’, but this was gradually taken over exclusively by prove, and the senses ‘sanction’ and ‘commend’, present since the beginning, established their primacy. => probity, prove
approve (v.)
c. 1300, "to demonstrate, prove;" mid-14c., "to attest (something) with authority," from Old French aprover (Modern French approuver) "approve, agree to," from Latin approbare "to assent to as good, regard as good," from ad- "to" (see ad-) + probare "to try, test something (to find if it is good)," from probus "honest, genuine" (see prove).
The meaning extended late 14c. to "to sanction, endorse, confirm formally" then to "assent to (something) as good" (early 15c.), especially in reference to the actions of authorities, parliaments, etc. Related: Approved; approving.
例文
1. The council is considering whether to approve of the use of firearms.
政務委員会は、武器の使用を承認するかどうかを検討している。
2.Her parents did not approve of her decision.
両親は彼女の決定に賛成していない。
3.I didn 't approve of his manner.
私は彼の態度が好きではありません。
4.I told my mother I wanted to leave school but she didn 't approve .
私は母に学校を続けたくないと言ったが、母は同意しなかった。
5.Can we deduce from your silence that you do not approve ？