Decency
来自Big Physics
mid 16th century (in the sense ‘appropriateness, fitness’): from Latin decentia, from decent- ‘being fitting’ (see decent).
wiktionary
From Latin decentia, from decens. Compare French décence. See decent.
etymonline
decency (n.)
1560s, "appropriateness, state or quality of being fit or suitable," from Latin decentia "comeliness, decency," from decentem "becoming, fitting," present participle of decere "to be fitting or suitable," from PIE *deke-, from root *dek- "to take, accept." Meaning "modesty, freedom from ribaldry or obscenity" (i.e. "appropriateness to standards of society") is from 1630s.
