Where does “poczęśneńka” come from?

poczęśneńka (Polish) comes from Polish poczęstunek, from Polish -unek, from German -ung, from Middle High German -ung, from Old High German -unga, from Proto-Germanic -ungō — -ing, -ion. "Forms gerund nouns from verbs.".

Ancestry of “poczęśneńka”, step by step

StepLanguageWordMeaning
1Polishpoczęstuneksnack; informal meal served to a group of people, typically eaten standing
2Polish-uneksubstantive suffix used when rendering or...
3German-ung-ing; "forms nouns from verbs, usually describing...
4Middle High German-ung
5Old High German-unga-ing
6Proto-Germanic-ungō-ing, -ion. "Forms gerund nouns from verbs."
Every word from Proto-Germanic -ungō