Where does “микуольин” come from?

микуольин (Northern Yukaghir) comes from Russian Микола, from Ukrainian Мико́ла, 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.

микуольин (Northern Yukaghir): Saint Nicholas's day