Where does “языковедческий” come from?
языковедческий (Russian) comes from Russian языкове́д, from Russian языковедение, from Russian язы́к, from Old East Slavic ѧзꙑкъ, from Proto-Slavic ęzykъ, from Proto-Balto-Slavic inźūˀ-kas, from Proto-Balto-Slavic *inźūˀs, from Proto-Balto-Slavic *dinźūˀs — tongue.
языковедческий (Russian): linguistic
Ancestry of “языковедческий”, step by step