Where does “bymbynek” come from?

bymbynek (Silesian) comes from Old Polish bębenek, from Old Polish -ek, from Proto-Slavic -ъkъ, from Proto-Slavic -kъ, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...

Ancestry of “bymbynek”, step by step

StepLanguageWordMeaning
1Old Polishbębenektype of net
2Old Polish-ekforms nouns
3Proto-Slavic-ъkъForms diminutives from old u-stem nouns;...
4Proto-Slavic-kъDeverbal, forms token nouns; From expressive or...
5Proto-Indo-European-kosCreates deadjectival and desubstantival...
Every word from Proto-Indo-European -kos →Every word from Proto-Slavic -kъ →Every word from Proto-Slavic -ъkъ →