sonrisa
/sonˈrisa/ · B1 · noun · f
smile
😁 son + risa: risa means laugh, so a sonrisa is an under-laugh
From sonreír, Latin subridere: sub (under) + ridere (to laugh). A smile is a laugh that stays below the surface. Risa is laughter, and son- is the worn-down form of sub. English ridiculous shares the same root.