The meaning of the name Demie is Half, Small. The origin of the name Demie is French. This is the culture in which the name originated, or in the case of a word, the language.
Or diminutive form of Demetria. Demi Moore, actress.
Demie is on 852 BN name lists Demie is currently not ranked on the BN charts Demie is currently #602 in U.S. births
Demie 
