joukkojenkeskitys (Finnish) comes from Finnish keskitys, from Finnish keskittää, from Finnish -ttää, from Proto-Finnic -ttadak, from Proto-Uralic -kta-.
joukkojenkeskitys (Finnish): concentration of forces or troops
Definitions
concentration of forces or troops
Ancestry of “joukkojenkeskitys”, step by step
joukkojenkeskitys traces back through two separate lines of ancestry.