Where does “ordeñar” come from?

ordeñar (Spanish) comes from Latin ōrdināre, from Latin ōrdō, from Proto-Italic ored(h)- — to arrange.

ordeñar (Spanish): to milk

Definitions

Step	Language	Word	Meaning
1	Latin	ōrdināre	—
2	Latin	ōrdō	—
3	Proto-Italic	ored(h)-	to arrange

ordeñar — Etymology, Origin & Word History | Etymology Explorer