disminuir
/dismiˈnwiɾ/ · B2 · verb
to diminish
📉 dis- (apart) + minuir (lessen) = make smaller, from Latin minuere
Spanish disminuir comes from Latin dis- (apart, away) plus minuere (to lessen). Think of the root in minus and minor: the same 'smaller' idea. English diminish is its close cousin.