Where does “вляпать” come from?
вляпать (Russian) comes from Russian ля́пать, from Latin lāpsus, from Latin lābor, from Old Latin labos, from Romanian labă, from Hungarian láb, from Proto-Uralic luwe, from Proto-Iranian *Hrawpācáh.
Ancestry of “вляпать”, step by step
Words derived from “вляпать”