Where does “expupilo” come from?

expupilo (Spanish) comes from Spanish pupilo, from Latin pūpillus, from Latin pūpus, from Proto-Indo-European peh₂w- — few, little; smallness.

expupilo (Spanish): former pupil

Definitions

Step	Language	Word	Meaning
1	Spanish	pupilo	orphan; houseguest, boarder; pupil
2	Latin	pūpillus	orphan, ward
3	Latin	pūpus	a boy, a child
4	Proto-Indo-European	peh₂w-	few, little; smallness