Where does “bliziutko” come from?

bliziutko (Polish) comes from Polish bliziutki, from Polish bliski, from Old Polish bliski, from Proto-Slavic blizъkъ, from Proto-Slavic blizъ, from Proto-Indo-European bʰleyǵ- — to shine.

Ancestry of “bliziutko”, step by step

StepLanguageWordMeaning
1Polishbliziutki—
2Polishbliskinear; familiar; emotionally close
3Old Polishbliskiclose
4Proto-Slavicblizъkъnear, close
5Proto-Slavicblizъnear, proximate
6Proto-Indo-Europeanbʰleyǵ-to shine
Every word from Proto-Indo-European bʰleyǵ- →Every word from Proto-Slavic blizъ →Every word from Proto-Slavic blizъkъ →