Where does “cantella” come from?

cantella (Vulgar Latin) comes from Latin candēla, from Latin candeō, from Proto-Italic kandēō, from Proto-Indo-European kand- — to shine, glow.

Ancestry of “cantella”, step by step

Step	Language	Word	Meaning
1	Latin	candēla	—
2	Latin	candeō	—
3	Proto-Italic	kandēō	—
4	Proto-Indo-European	kand-	to shine, glow

cantella — Etymology, Origin & Word History | Etymology Explorer