Where does “depauperare” come from?

depauperare (Medieval Latin) comes from Latin pauperare, from Latin pauper, from Latin pavo-pars, from Proto-Indo-European pau- — smallness.

Ancestry of “depauperare”, step by step

Step	Language	Word	Meaning
1	Latin	pauperare	—
2	Latin	pauper	poor
3	Latin	pavo-pars	getting little
4	Proto-Indo-European	pau-	smallness

depauperare — Etymology, Origin & Word History | Etymology Explorer