Where does “petäjämetsä” come from?

petäjämetsä (Ingrian) comes from Finnish metsä, from Proto-Finnic *meccä, from Proto-Baltic medjas.

Ancestry of “petäjämetsä”, step by step

petäjämetsä traces back through two separate lines of ancestry.

via Finnish metsä

StepLanguageWordMeaning
1Finnishmetsäforest, woods; bush; hunting
2Proto-Finnic*meccä—
3Proto-Balticmedjas—

via Finnish petäjä

StepLanguageWordMeaning
1Finnishpetäjäpine; a large, lone pine tree
2Proto-Finnicpetägäpine
3Proto-Uralicpečäpine
Every word from Proto-Baltic medjas →Every word from Proto-Finnic *meccä →Every word from Finnish metsä →
petäjämetsä — Etymology, Origin & Word History | Etymology Explorer