linguistic (adj.)youdaoicibaDictYouDict[linguistic 词源字典]
1856, from French linguistique (1833); see linguist + -ic. The use of linguistic to mean "of or pertaining to language or languages" is "hardly justifiable etymologically," according to OED, but "has arisen because lingual suggests irrelevant associations." Related: linguistically.[linguistic etymology, linguistic origin, 英语词源]