demicommon nounadjectiveadverbSyllable DecompositiondemiEtymologyexpandfrom the Latin dimidius ('half') derived from dis (particle indicating division, similar to bis) and medius ('in the middle, central').Definition1. It is also used adverbially before several adjectives and means half, almost.expandIl est demi-fou. J'étais demi-mort.AnagramidemSee alsodemi (cn.)