As a female, and as an equestrian, I have never before heard of a feminine gender of equestrian before.
In English there are no masculine or feminine forms. English uses gender specific nouns for male or female.The noun equestrian is a common gender noun, a word for a male or a female horse rider.
The feminine gender of "votary" is "votress."
The feminine gender for the word "heir" is "heiress."
jk asentista
The feminine gender of tutor is "tutora" in Spanish.
There isn't one... the word 'enemy' has no gender.
Gender is genderless (in English) and as a reference to the sex of a person.
feminine is aviatrix
waitress is the feminine
Doe is the feminine gender of a deer. Caribou is a type of deer.
The feminine gender for tutor is "tutoress" or "tutor."
There is no feminine gender of the word "cub." Cub is neutral in English, so it is used for male and female cubs.