Alternative spelling of demy.
"The old manuscript was written in an archaic style that used the variant spelling demi instead of demy for its paper size."
Demisexual.
"After years of feeling disconnected from others, she finally admitted to herself that she was demisexual and only developed romantic feelings after forming a deep emotional bond."
A female given name, a diminutive of Demetria introduced into English in the 1990s by the actress Demi Moore.
"After meeting at the coffee shop, Sarah asked if I knew anyone else named Demi like the famous actress."