Where does “quadrivettore” come from?
quadrivettore (Italian) comes from Italian quadr-, from Latin quattŭor, from Portuguese quarto, from Old Portuguese quarto, from Latin quārtus, from Proto-Indo-European kʷeturtos, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.
quadrivettore (Italian): four-vector
Ancestry of “quadrivettore”, step by step