1540s, "expression of respect," a variant of courtesy (q.v.). Specific meaning "a bending the knee and lowering the body as a gesture of respect" is from 1570s. Originally not exclusively feminine.
curtsy (v.)
1550s, from curtsy (n.). Related: Curtsied; curtsying.
例文
1. We were taught how to curtsy to the Queen.
女王への屈膝の礼の仕方を教えてくれる人がいます。
2.She gave a curtsy .
彼女は膝を曲げて礼をした。/
3.She swept hima curtsy .
彼女は歩いている間に膝を曲げて礼をした。
4. The ballerina bobbed a curtsy ( to the audience ) before leaving the stage.
そのバレエ**の俳優は退陣する前に(観客に)膝を曲げて礼をした。
5.His lordship gave me an indulgent look,and acknowledged my curtsy very graciously.