kylmäketju (Finnish) comes from Finnish ketju, from Swedish kedja, from Latin catēna, from Proto-Indo-European kat- — cub; to weave, to braid; to link or weave...
kylmäketju (Finnish): cold chain
Definitions
cold chain
Ancestry of “kylmäketju”, step by step
kylmäketju traces back through two separate lines of ancestry.