relajar
/relaˈxaɾ/ · A2 · verb
to relax, to loosen
🛋️ relajar = re + lax (Latin laxus, loose): to make loose again
Same root as English relax and lax. From Latin relaxare: re- (back, again) + laxare (to loosen). The Spanish j replaced the Latin x, so relax- became relaj-. Add the -ar verb ending and you have relajar.