Where does “Cordero” come from?

Cordero (Spanish) comes from Vulgar Latin *cordārium, from Latin chordus — late-born; produced late.

Ancestry of “Cordero”, step by step

Step	Language	Word	Meaning
1	Vulgar Latin	*cordārium	—
2	Latin	chordus	late-born; produced late

Cordero — Etymology, Origin & Word History | Etymology Explorer