Where does “varjonpuoli” come from?

varjonpuoli (Finnish) comes from Finnish puoli, from Proto-Finnic pooli, from Proto-Uralic pälä — half.

Ancestry of “varjonpuoli”, step by step

varjonpuoli traces back through two separate lines of ancestry.

via Finnish puoli

StepLanguageWordMeaning
1Finnishpuolihalf; when followed by a number representing an...
2Proto-Finnicpoolihalf, side; half
3Proto-Uralicpälähalf

via Finnish varjo

StepLanguageWordMeaning
1Finnishvarjoshade; shadow; umbrella, as a short form of...
2Proto-Finnicvarjoshadow, shade; protection
3Proto-Germanicwarjǭ
Every word from Proto-Uralic päläEvery word from Proto-Finnic pooliEvery word from Finnish puoli