What was the historical designation for the female servant (*deie*) referenced in the etymology of "dairy"?

Answer

One responsible for milking and making butter and cheese.

Etymologically, the term traces back to the *deie*, which was a female servant historically tasked with the duties of milking animals and producing butter and cheese.

What was the historical designation for the female servant (*deie*) referenced in the etymology of "dairy"?
foodDefinitiondairymilk