Where does “puerunculus” come from?

puerunculus (Latin) comes from Latin puer, from Proto-Italic *puweros.

Ancestry of “puerunculus”, step by step

Step	Language	Word	Meaning
1	Latin	puer	a child; chit; a boy, lad; a male servant or...
2	Proto-Italic	*puweros	—

puerunculus — Etymology, Origin & Word History | Etymology Explorer