Where does “Kolja” come from?

Kolja (Ingrian) comes from Russian коля, from Russian Никола́й, from Ancient Greek Νικόλαος, from Ancient Greek λᾱός, from Proto-Hellenic lāwós, from Proto-Indo-European leh₂wos, from Proto-Indo-European leh₂- — to bark, howl; to be concealed.

Ancestry of “Kolja”, step by step

StepLanguageWordMeaning
1Russianколяpresent adverbial imperfective participle of...
2RussianНикола́йNovember (N in the ICAO spelling alphabet)
3Ancient GreekΝικόλαοςNicolas
4Ancient Greekλᾱόςpeople; men; the people
5Proto-Helleniclāwóspeople, crowd
6Proto-Indo-Europeanleh₂wospeople
7Proto-Indo-Europeanleh₂-to bark, howl; to be concealed
Every word from Proto-Indo-European leh₂-Every word from Proto-Indo-European leh₂wosEvery word from Proto-Hellenic lāwós