Primusgender is possibly used by multi- or pan- or bi- gender people. Having a gender which one feels is primary, strongest in identifying with. “I am bigender with femme primus and non-binary sequi."[1]
Flag
The primusgender flag was designed by DeviantArt user Pride-Flags on January 12th of 2015. It has no confirmed meaning.[2]
Etymytology
The prefix primus- is derived from the Latin word, meaning "first," "primary," or "first in order".