A cisman, shorthand for "cissexual man" or "cisgender man," is non-transsexual man--a man whose assigned gender is male, and whose assigned male gender is more or less consistent with his personal sense of self. This distinguishes him from transmen, shorthand for "transsexual men"
Gerhard, always felt like his cis man self, knowing he was born into the correct body with which he himself clearly identified - male.
by Parker A. Davis December 1, 2017