The word cisgender (often shortened to cis; sometimes cissexual) describes a person whose gender identity corresponds to their sex assigned at birth, i.e., someone who is not transgender.[1][2][3] The prefix cis- is Latin and means on this side of. The term cisgender was coined in 1994 as an antonym to transgender, and entered into dictionaries starting in 2015 as a result of changes in social discourse about gender.[4][5]
Related concepts are cisnormativity (the presumption that cisgender identity is preferred or normal) and cissexism (bias or prejudice favoring cisgender people).
^"cisgender". Merriam-Webster.com Dictionary. n.d. Retrieved March 8, 2021.
^Martin, Katherine. "New words notes June 2015". Oxford English Dictionary. Oxford University Press. Archived from the original on August 14, 2015. Retrieved August 2, 2015.