Where does “cadeado” come from?

cadeado (Galician) comes from Old Portuguese cadẽado, from Late Latin catenatum, from Latin catēna, from Proto-Indo-European kat- — cub; to weave, to braid; to link or weave...

cadeado (Galician): padlock

Definitions

padlock

Ancestry of “cadeado”, step by step

Step	Language	Word	Meaning
1	Old Portuguese	cadẽado	lock
2	Late Latin	catenatum	nominative neuter singular of catēnātus;...
3	Latin	catēna	chain
4	Proto-Indo-European	kat-	cub; to weave, to braid; to link or weave...

Every word from Proto-Indo-European kat- →Every word from Latin catēna →Every word from Late Latin catenatum →