From she- + fox.
she-fox (plural she-foxes)
- (rare) Synonym of vixen.
1605, Richard Verstegen, A Restitution of Decayed Intelligence.[1]:fixen, This is the name of a ſhee-fox, otherwiſe & more anciently foxin. It is in reproche applyed to a woman whoſe nature and condition is thereby compared to the ſhee-fox.
1652, W.B., Experiences and Tears[2]:[…] he was begotten of the Old Dragon, upon a ſhe Fox, or Vixon ; yet for all his Cunning, he was Tryed, found guilty, and Beheaded; […]
1689, Philip Ayres, Esq., Mythologia Ethica: or, Three Centuries of Æsopian Fables[3]:A Lioneſs being upbraided by a She-Fox, that ſhe was not Fruitful, bringing forth but one young at a time; anſwered, 'Tis true, but what I am then delivered of, is a Lion. / Excellence conſists not in Quantity, but Quality.