taustajoukko (Finnish) comes from Finnish joukko, from Proto-Finnic joukko, from Proto-Germanic jaukiją, from Proto-Indo-European yewg- — to join, to yoke, to tie together.
taustajoukko (Finnish): backup, reinforcement
Definitions
backup, reinforcement
Ancestry of “taustajoukko”, step by step
taustajoukko traces back through two separate lines of ancestry.