Where does “cuadrillo” come from?
cuadrillo (Spanish) comes from Spanish cuadro, from Latin quādrus, from Latin quattŭor, from Portuguese quarto, from Old Portuguese quarto, from Latin quārtus, from Proto-Indo-European kʷeturtos, from Proto-Indo-European kʷetwóres — and.
cuadrillo (Spanish): number sign; hash
Ancestry of “cuadrillo”, step by step