ヒジュラalso: ヘジラヒジュラMeanings1nounHijra; HegiraRefers to the migration of the Islamic prophet Muhammad from Mecca to Medina in 622 CE, marking the start of the Islamic calendar.from Arabicイスラム暦れきはヒジュラを起き点てんとしている。The Islamic calendar begins with the Hijra.