1650s, "having a characteristic taste" (of wines, fruits, etc.), from race (n.2) in its older sense of "flavor" or in the sense "class of wines" + -y (2); meaning "having a quality of vigor" (1660s) led to that of "improper, risqué," first recorded 1901, probably reinforced by phrase racy of the soil "earthy" (1870). Related: Racily; raciness.
例文
1. Her racy stories can be rather shocking.
彼女の下品な話は時に驚くことがある。
2.Paul shocked the ladies with his racy stories.
ポールの卑猥な物語に女性たちはショックを受けた。
3.He was all for the racy phrase.
彼は特に生き生きとしたフレーズを用いることを主張している。
4.Busy boasts chug and scurry about the river- racy speed boat,stolid,snorting tugs.
多忙な船が川の上で鳴いて行き来している---高速艇と不器用な頭が息をつくタグボート。
5.Nothing could be more racy 、straightforward、and alive than the prose of Shakespeare.