2. To conduct; to behave; to comport; followed by the reflexive pronoun. They have demeaned themselves like men born to renown by life or death. (Shak) They answered . . . That they should demean themselves according to their instructions. (Clarendon)
Origin: OF. Demener to conduct, guide, manage, f. Se demener to struggle pref. De- (L. De) _ mener to lead, drive, carry on, conduct, fr. L. Minare to drive animals by threatening cries, fr. Minari to threaten. See Menace.