You surmised correctly, O Hatted One. It is indeed descended from “menarche”. I use transarche to denote when i first truly realized I was trans. While I had a breakdown at eight, I never really did anything about it (unless you count praying, which didn’t really help) and I gave up, assuming that I was just a weirdo.
It wasn’t until late August 2013 that I realized “Hey, I’m still having these thoughts about being a girl. Maybe I should check into that…” That is what I call my transarche. Afterwards I went online, did some Googling, took the COGATI (and subsequently found out it was bullshit), found out “I’m not alone or crazy!?”, but it was that first “Wait a minute…” moment that I recognize as the beginning of my journey. If you want to use transarche, you’re more than welcome to it, it’s not like I took out a copyright on it. (Although…)
So anyway, thank you to Joe, my shitty supervisor at my last job. If you hadn’t treated me like dirt, I might not be the woman I am today. Thank you so much, you rotten piece of garbage.
I am seriously happy, though. Being trans caused some strife in my life, but I made some good friends out of the process. I even found love. So for reals, Joe… Thank you, from the bottom of my heart.