decriminalize (v.)youdaoicibaDictYouDict[decriminalize 词源字典]
1963, "to reform a criminal," back-formation from decriminalization. Meaning "to make legal something that formerly had been illegal" was in use by 1970 (there are isolated instances back to 1867). Related: Decriminalized; decriminalizing.[decriminalize etymology, decriminalize origin, 英语词源]