mid-15c., "proper character, disposition," from Old French proprieté "individuality, peculiarity; property" (12c.), from Latin proprietatem (nominative proprietas) "appropriateness," also "ownership" (see property). Meaning "fitness, appropriateness" is attested from 1610s; sense of "conformity to good manners" is from 1782.
例文
1. In male company，perhaps he did overstep the bounds of propiety .
男性一色の会社では、彼の振る舞いは確かに体に合わないかもしれない。
2.His marriage and family life is a model of propiety .
彼の結婚と家庭生活はきちんとしている。
3.Nobody questioned the propiety of her being there alone.
彼女がそこに一人で現れて体が悪いと思っている人はいない。
4.We hesitated at the propiety of the method.
この方法が適用されるかどうかは定かではありません。
5.The sensitive matter was handled with great propiety .