Where does “pohjustaminen” come from?

pohjustaminen (Finnish) comes from Finnish pohjustaa, from Finnish pohjus, from Ingrian pohja, from Proto-Finnic pohja, from Proto-Finno-Permic pošja.

Ancestry of “pohjustaminen”, step by step

StepLanguageWordMeaning
1Finnishpohjustaato underlay, set up
2Finnishpohjusbottom, base
3Ingrianpohjabottom; north
4Proto-Finnicpohjabottom; base, foundation; north
5Proto-Finno-Permicpošja—
Every word from Proto-Finno-Permic pošja →Every word from Proto-Finnic pohja →Every word from Ingrian pohja →