Meaning of demi-

demi-

Pronunciation: [key]
  1. 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).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.