Where does “laborioso” come from?
laborioso (Spanish) comes from Latin laboriosus, from Latin lābor, from Old Latin labos, from Romanian labă, from Hungarian láb, from Proto-Uralic luwe, from Proto-Iranian *Hrawpācáh, from Proto-Indo-Iranian *Hrawpāćás.
laborioso (Spanish): laborious, toilsome
Ancestry of “laborioso”, step by step
Words derived from “laborioso”