desayunar
/desaʝuˈnaɾ/ · B1 · verb
to have breakfast
🍳☕ des- (un-) + ayunar (to fast) = un-fast, exactly like break-fast
Ayunar means to fast, from Latin jejunare, the same root as jejune and jejunum. Adding des- undoes it, so desayunar is to un-fast, which is the same idea as the English break + fast. El desayuno is breakfast.