Where does “поминки” come from?

поминки (Russian) comes from Russian помина́ть, from Old East Slavic поминати, from Slavic pomineti.

поминки (Russian): wake, funeral repast

Definitions

Step	Language	Word	Meaning
1	Russian	помина́ть	to remember, to recall
2	Old East Slavic	поминати	—
3	Slavic	pomineti	—

поминки — Etymology, Origin & Word History | Etymology Explorer