Where does “pikapuolin” come from?

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

Ancestry of “pikapuolin”, step by step

StepLanguageWordMeaning
1Finnishpuolihalf; when followed by a number representing an...
2Proto-Finnicpoolihalf, side; half
3Proto-Uralicpälähalf
Every word from Proto-Uralic pälä →Every word from Proto-Finnic pooli →Every word from Finnish puoli →