Don't you think with the names Augustine/Augustina and
Augusta, the nickname
August would have come around with girls at some point or another? I really kind of see it like
Alex, a shortening of a plethora of both male and female names. Now some might say, '
Alex as itself, should only be a male name, and Alexa/Alexandra/Alexandria/etc should be fit for a girl" but people would still call that girl
Alex in the long run. So I find quarreling over it just ridiculous. I'm sorry but if you name your daughter
Augusta she will be called
August in her life and maybe that's how it can viewed as unisex, like
Alex.