Where does “mpronjës” come from?

mpronjës (Albanian) comes from Albanian -ës, from Albanian nxë, from Proto-Albanian džeina, from Proto-Indo-European gʰendʰ- — ulcer, sore, abscess, boil; sore, ulcer, abscess,...

Ancestry of “mpronjës”, step by step

Step	Language	Word	Meaning
1	Albanian	-ës	used to form agent nouns. -er
2	Albanian	nxë	I learn, study; I grasp, snatch; I fit
3	Proto-Albanian	džeina	—
4	Proto-Indo-European	gʰendʰ-	ulcer, sore, abscess, boil; sore, ulcer, abscess,...

Every word from Proto-Indo-European gʰendʰ- →Every word from Albanian -ës →Every word from Proto-Albanian džeina →