maturity (n.)youdaoicibaDictYouDict[maturity 词源字典]
early 15c., "maturity of character;" mid-15c., "ripeness," from Middle French maturité and directly from Latin maturitatem (nominative maturitas) "ripeness," from maturus "ripe" (see mature (v.)). Financial sense "state of being due for payment" is from 1815.[maturity etymology, maturity origin, 英语词源]