Where does “Bialek” come from?

Bialek (English) comes from Polish białek, from Old Polish białek, from Proto-Slavic bělъkъ, from Proto-Slavic -ъkъ, from Proto-Slavic -kъ, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...

Ancestry of “Bialek”, step by step

StepLanguageWordMeaning
1PolishbiałekA land snail of the genus Carychium; egg white;...
2Old Polishbiałekalbumen, egg white
3Proto-Slavicbělъkъalbumen; sclera?
4Proto-Slavic-ъkъForms diminutives from old u-stem nouns;...
5Proto-Slavic-kъDeverbal, forms token nouns; From expressive or...
6Proto-Indo-European-kosCreates deadjectival and desubstantival...
Every word from Proto-Indo-European -kosEvery word from Proto-Slavic -kъEvery word from Proto-Slavic -ъkъ