Where does “quadrivector” come from?
quadrivector (English) comes from English quadri-, 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.
quadrivector (English): Synonym of four-vector
Ancestry of “quadrivector”, step by step