escuadrón
/eskwaˈdɾon/ · B1 · noun · m
squadron
✈️ escuadra (a square, set in formation) + -ón = a big group in square formation
From Italian squadrone, from squadra, a square or team. Soldiers were drawn up in square blocks. English got squadron and squad from the same root, so escuadrón is squadron with an es- in front.