Heg·i·ra
noun/ˈhedʒɪrə/, /hɪˈdʒaɪrə/
/ˈhedʒɪrə/, /hɪˈdʒaɪrə/
(also Hejira)
(also Hijra)
[singular]- (usually the Hegira)the occasion when Muhammad left Mecca to go to Medina in AD 622
希吉拉（意为迁徙，指公元 622 年穆罕默德从麦加前往麦地那） - the period that began at this time; the Muslim era
伊斯兰纪元（从公元 622 年开始）
Word Originvia medieval Latin from Arabic hijra ‘departure’, from hajara ‘emigrate’.