täydennysjoukko (Finnish) comes from Finnish täydennys, from Finnish täydentää, from Finnish täysi, from Proto-Finnic täüci, from Proto-Uralic täwde — full.
täydennysjoukko (Finnish): reinforcement additional troops or materiel sent to support a military action
Definitions
reinforcement additional troops or materiel sent to support a military action
Ancestry of “täydennysjoukko”, step by step
täydennysjoukko traces back through two separate lines of ancestry.