Where does “popyscyć” come from?

popyscyć (Polish) comes from Polish pyszczyć, from Polish -yć, from Old Polish -yć, from Proto-Slavic -iťь — Denominal, forming masculine attributables from...

Ancestry of “popyscyć”, step by step

Step	Language	Word	Meaning
1	Polish	pyszczyć	to mouth off
2	Polish	-yć	forms masculine nouns, usually meaning "son of"
3	Old Polish	-yć	forms masculine nouns, usually meaning "son of"
4	Proto-Slavic	-iťь	Denominal, forming masculine attributables from...

Every word from Proto-Slavic -iťь →Every word from Polish -yć →Every word from Old Polish -yć →