miscreant
n. US //ˈmɪskɹiənt// UK //mˈɪskɹiənt// mis·cre·ant
From Middle English myscreaunt, miscreaunt, from Old French mescreant (1080) "mis-believer", present participle of mescreire "to misbelieve" (modern mécroire). Cognate with French mécréant.