What is the feminine of sire?

In English there are no masculine or feminine forms. English uses gender specific nouns for male or female.

The Word 'sire' has two meanings:

The noun 'sire' is a title to address a male regent or monarch.

The corresponding noun to address a female regent or monarch is ma'am.

The noun 'sire' is a Word for a the male parent of some animal species.

The corresponding noun for the female parent of those animals is dam.