Where does “päässälasku” come from?

päässälasku (Finnish) comes from Finnish lasku, from Votic laskõa, from Proto-Finnic laskedak, from Proto-Uralic laćke-.

päässälasku (Finnish): mental calculation, mental arithmetic

Definitions

  1. mental calculation, mental arithmetic

Ancestry of “päässälasku”, step by step

päässälasku traces back through two separate lines of ancestry.

via Finnish lasku

StepLanguageWordMeaning
1Finnishlaskudescent, an instance of descending, sliding down...
2Voticlaskõato let go, let loose, release
3Proto-Finniclaskedakto drop, to fall; to release; to let, to allow
4Proto-Uraliclaćke-—

via Finnish pää

StepLanguageWordMeaning
1Finnishpäähead; end, tip
2Proto-Finnicpäähead
3Proto-Uralicpäŋehead
Every word from Proto-Uralic laćke- →Every word from Proto-Finnic laskedak →Every word from Votic laskõa →
päässälasku — Etymology, Origin & Word History | Etymology Explorer