Morals
来自Big Physics
late Middle English: from Latin moralis, from mos, mor- ‘custom’, (plural) mores ‘morals’. As a noun the word was first used to translate Latin Moralia, the title of St Gregory the Great's moral exposition of the Book of Job, and was subsequently applied to the works of various classical writers.
etymonline
morals (n.)
1610s, "a person's moral qualities," plural of moral (n.). Meaning "conduct, behavior, course of life in regard to right and wrong," often specifically with regard to sexual conduct, is by 1690s.
