marque (n.)youdaoicibaDictYouDict[marque 词源字典]
"seizure by way of reprisal," mid-15c., in letters of marque "official permission to capture enemy merchant ships," from Anglo-French mark (mid-14c.), via Old French from Old Provençal marca "reprisal," from marcar "seize as a pledge, mark," probably from a Germanic source (compare Old High German marchon "delimit, mark;" see mark (n.1)), but the sense evolution is difficult.[marque etymology, marque origin, 英语词源]