linguist
n.
1580s, "a master of language, one who uses his tongue freely," a hybrid from Latin lingua "language, tongue" (see lingual) + -ist. Meaning "a student of language" first attested 1640s.
〔李〕[lingu;-istn.] n.语言学家 ←lingu (L lingua)=tongue, language 舌，语言
〔蒋〕[lingu语言，-ist表示人] 语言学家