köken: Inherited from Proto-Turkic *yï̄lan, a derivation of Proto-Turkic *yï̄l- (“to creep”). Cognate with Old Turkic [script needed] (yïlan, “snake”), Turkish yılan, Tatar елан (yılan).
köken: Borrowed from French reptile, from Middle French reptile, from Old French reptile, from Late Latin rēptile, neuter of reptilis (“creeping”), from Latin rēpō (“to creep”), from Proto-Indo-European *rep- (“to creep, slink”) (Pokorny; Watkins, 1969).
köken: PIE word *kʷŕ̥mis From Proto-Finnic *kärmeh, borrowed from Proto-Balto-Slavic *kirmis (compare Latvian cirmenis (“maggot”), Lithuanian kirmis (“worm”)), from Proto-Indo-European *kʷr̥mis.
köken: From the verb hűl (“to cool”) + -ő (present participle suffix). Created by Barczafalvi Szabó Dávid during the Hungarian language reform, which took place in the 18th–19th centuries.