cinturón
/θintuˈɾon/ · B1 · noun · m
belt
🥋 cintura (waist) + -ón (big) = the big band round your waist
From Latin cinctura, from cingere, to gird. English cincture comes from the same root. Spanish cincha (a saddle girth) shares it too, and that gave English the word cinch, a strap pulled tight. So a cinturón is the strap cinched at your waist.