- coat of arms (n.)
[coat of arms 词源字典]
- mid-14c., originally a tunic embroidered with heraldic arms (worn over armor, etc); see from coat (n.) + arm (n.2) and compare Old French cote a armer. Sense transferred to the heraldic arms themselves by 1560s. Hence turncoat, one who put his coat on inside-out to hide the badge of his loyalty.[coat of arms etymology, coat of arms origin, 英语词源]