Where does “chaveta” come from?

chaveta (Portuguese) comes from Portuguese Chave, from Old Portuguese chave, from Latin clāvis, from Ancient Greek κλείς, from Proto-Hellenic klāwī́ds, from Proto-Indo-European kleh₂u- — nail, pin, hook - instruments, of old use for...

chaveta (Portuguese): linchpin; cotter pin; split pin; brace, curly...

Definitions

linchpin; cotter pin; split pin; brace, curly...

Ancestry of “chaveta”, step by step

Step	Language	Word	Meaning
1	Portuguese	Chave	key object that opens and closes a lock
2	Old Portuguese	chave	key
3	Latin	clāvis	a key
4	Ancient Greek	κλείς	Something used to lock/unlock: key, bolt, bar; A...
5	Proto-Hellenic	klāwī́ds	—
6	Proto-Indo-European	kleh₂u-	nail, pin, hook - instruments, of old use for...

Every word from Proto-Indo-European kleh₂u- →Every word from Proto-Hellenic klāwī́ds →Every word from Ancient Greek κλείς →