antiguo
/anˈtiɡwo/ · A2 · adj
old, former, erstwhile, quondam, one-time, onetime
🏺 antiguo = antique + -uo: same Latin root, antiquus, meaning old
Spanish antiguo and English antique both come from Latin antiquus (former, ancient). Swap the q for a g and you have the Spanish word. Before a noun it means former (mi antiguo jefe = my former boss); after it, ancient or old.