What is the meaing of the name demi?

Answer 1

Demi can be short for the name Demetria, Demitra or Demitria.

The name Demetria comes from the Greek goddess Demeter, goddess of fertility, also known as Earth Mother.

If you're referring to Demi Moore, her real namd is Demetria Gene Guynes.

Answer 2

demi-

a combining form appearing in loanwords from French meaning "half" (demilune), "lesser" (demitasse), or sometimes used with a pejorative sense (demimonde); on this model, also prefixed to words of English origin (demigod).

Answer 3

Demi is short for Demetria which is a greek name which means "Earth Mother"