Where does “pulunescu” come from?

pulunescu (Aromanian) comes from Aromanian Pulunii, from Albanian Poloni, from Italian Polonia, from Medieval Latin Polonia, from Polish Polanie, from Proto-Slavic poľane, from Proto-Slavic poľe, from Proto-Indo-European pleh₂- — flat.

pulunescu (Aromanian): Polish (of, from, or pertaining to Poland, the Polish people or the Polish language)

Definitions

Polish (of, from, or pertaining to Poland, the Polish people or the Polish language)

Ancestry of “pulunescu”, step by step

pulunescu traces back through two separate lines of ancestry.

via Aromanian Pulunii

Step	Language	Word	Meaning
1	Aromanian	Pulunii	—
2	Albanian	Poloni	—
3	Italian	Polonia	—
4	Medieval Latin	Polonia	Poland
5	Polish	Polanie	Poles; field-dwellers
6	Proto-Slavic	poľane	—
7	Proto-Slavic	poľe	field
8	Proto-Indo-European	pleh₂-	flat

via Aromanian escu

Step	Language	Word	Meaning
1	Aromanian	escu	I am
2	Latin	sūm	to be, exist
3	Proto-Italic	ezom	to be
4	Proto-Indo-European	h₁ésmi	first-person singular present indicative of...
5	Proto-Indo-European	h₁ēs-	to be

Every word from Proto-Indo-European pleh₂- →Every word from Proto-Slavic poľe →Every word from Proto-Slavic poľane →