hejira
1. [ noun ] the flight of Muhammad from Mecca to Medina in 622 which marked the beginning of the Muslim era; the Muslim calendar begins in that year
Synonyms: hegira
Related terms: escape
2. [ noun ] a journey by a large group to escape from a hostile environment
Synonyms: exodus hegira
Related terms: escape
Similar spelling:   hegira
  Heiser
  Heger