Where does “publica” come from?

publica (Portuguese) comes from Portuguese publicar, from Latin publicō, from Latin pūblicus, from Old Latin poplicus, from Latin pōpulus, from Proto-Italic poplos — army.

publica (Portuguese): third-person singular present indicative of...

Definitions

third-person singular present indicative of...

Ancestry of “publica”, step by step

Step	Language	Word	Meaning
1	Portuguese	publicar	to publish
2	Latin	publicō	to seize, to confiscate, to make public property, to nationalize
3	Latin	pūblicus	of or belonging to the people, state, or community
4	Old Latin	poplicus	Alternative form of publicus
5	Latin	pōpulus	a people, nation
6	Proto-Italic	poplos	army

Every word from Proto-Italic poplos →Every word from Latin pōpulus →Every word from Old Latin poplicus →