disuse (n.)youdaoicibaDictYouDict[disuse 词源字典]
c. 1400, see dis- + use (n.).[disuse etymology, disuse origin, 英语词源]
disuse (v.)youdaoicibaDictYouDict
c. 1400, "misuse, pervert;" mid-15c., "become unaccustomed," from or on analogy of Old French desuser, from des- "not" (see dis-) + user "use" (see use (v.)). Related: Disused.