Q. How will you diſtinguiſh the Maſculine hic from the Epicene hic, and the Feminine hæc from the Epicene hæc? / A. That word that hath hic before it, and is onely male, is the Maſculine gender: but if it be both male and female, then it is the Epicene Gender: and ſo hæc before a female, is feminine, but hæc before a word that contains under it both ſexes, is Epicene.
Source: wiktionary