Impropriety
来自Big Physics
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.
