Where does “cavicula” come from?

cavicula (Vulgar Latin) comes from Latin clāvicula, from Latin clāvis, from Ancient Greek κλείς, from Proto-Hellenic klāwī́ds, from Proto-Indo-European kleh₂u- — nail, pin, hook - instruments, of old use for...

Ancestry of “cavicula”, step by step

cavicula traces back through two separate lines of ancestry.

via Latin clāvicula

Step	Language	Word	Meaning
1	Latin	clāvicula	the tendril of a vine
2	Latin	clāvis	a key
3	Ancient Greek	κλείς	Something used to lock/unlock: key, bolt, bar; A...
4	Proto-Hellenic	klāwī́ds	—
5	Proto-Indo-European	kleh₂u-	nail, pin, hook - instruments, of old use for...

via Classical Latin clāvicula

Step	Language	Word	Meaning
1	Classical Latin	clāvicula	—
2	Classical Latin	clāvis	—

Words derived from “cavicula”

cabilla
cavilla
caviglia
kabilya
cavigliere
incavigliare
καβίλια
incavigliatura

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