He-gī'rā or Hē'gī-rā

(Synop., § 130), m. [Written also hejira.] [Ar. hidjrat, hidjrah, departure, from hadjara, to separate, to desert one's country or friends.] The flight of Mohammed from Mecca, July 16, A. D. 622; — from which date time is reckoned by the Mohammedans; hence, any flight or exodus.