Where does “Bielawiec” come from?

Bielawiec (Polish) comes from Polish -iec, from Proto-Slavic -ьcь, from Lithuanian -ikas, from Proto-Indo-European -iḱos — -y, -ic.

Ancestry of “Bielawiec”, step by step

StepLanguageWordMeaning
1Polish-iecA masculine suffix
2Proto-Slavic-ьcьForms diminutives from nouns; Forms nouns from...
3Lithuanian-ikas—
4Proto-Indo-European-iḱos-y, -ic
Every word from Proto-Indo-European -iḱos →Every word from Polish -iec →Every word from Proto-Slavic -ьcь →