parityyoudaoicibaDictYouDict[parity 词源字典]
parity: see pair
[parity etymology, parity origin, 英语词源]
parity (n.)youdaoicibaDictYouDict
1570s, "equality of rank or status," from Middle French parité (14c.) or directly from Late Latin paritas "equality," from Latin adjective par (genitive paris) "equal" (see pair (n.)). Meaning "condition in which adversaries have equal resources" is from 1955, originally in reference to the U.S.A. and the U.S.S.R.