Impropriety
来自Big Physics
Safin（讨论 | 贡献）2022年4月28日 (四) 03:51的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=impropriety+etymology&newwindow=1&hl=en ref] early 17th century (also in the sense ‘ina…”的新页面）
early 17th century (also in the sense ‘inaccuracy’): from French impropriété or Latin improprietas, from improprius (see improper).
wiktionary
From French impropriété, from Latin improprietas
etymonline
impropriety (n.)
1610s, "quality or fact of being improper," from French impropriété (16c.) or directly from Latin improprietas "impropriety," from improprius "improper" (see improper). As "improper thing," 1670s.
