Where does “pirulauta” come from?

pirulauta (Finnish) comes from Finnish piru, from Finnish perkele, from Proto-Finnic perkeleh — evil spirit?.

Ancestry of “pirulauta”, step by step

pirulauta traces back through two separate lines of ancestry.

via Finnish piru

StepLanguageWordMeaning
1Finnishpiruthe Devil; a devil; An intensifier; used in...
2FinnishperkeleThe Devil, Satan; also Perkele; devil; A swear...
3Proto-Finnicperkelehevil spirit?

via Finnish jumalauta

StepLanguageWordMeaning
1Finnishjumalautagoddammit/goddamnit
2FinnishJumalaGod; of God
Every word from Proto-Finnic perkeleh →Every word from Finnish perkele →Every word from Finnish piru →