Where does “taajentua” come from?

taajentua (Finnish) comes from Finnish taajentaa, from Finnish taaja, from Proto-Finnic takja — dense, thick.

Ancestry of “taajentua”, step by step

StepLanguageWordMeaning
1Finnishtaajentaato make more frequent
2Finnishtaajathick, dense; frequent
3Proto-Finnictakjadense, thick
Every word from Proto-Finnic takja →Every word from Finnish taaja →Every word from Finnish taajentaa →