Where does “pobríssimo” come from?

pobríssimo (Portuguese) comes from Portuguese pobre, from Old Portuguese pobre, from Latin pauper, from Latin pavo-pars, from Proto-Indo-European pau- — smallness.

Ancestry of “pobríssimo”, step by step

Step	Language	Word	Meaning
1	Portuguese	pobre	poor
2	Old Portuguese	pobre	poor
3	Latin	pauper	poor
4	Latin	pavo-pars	getting little
5	Proto-Indo-European	pau-	smallness

Every word from Proto-Indo-European pau- →Every word from Latin pavo-pars →Every word from Latin pauper →