luscious (adj.)youdaoicibaDictgodict[luscious 词源字典]
late 15c., perhaps a variant (with form perhaps influenced by Old French luxure, lusure) of Middle English licius "delicious" (c. 1400), which is perhaps a shortening of delicious, but OED is against this. Related: Lusciously; lusciousness.[luscious etymology, luscious origin, 英语词源]