A journey undertaken to escape from a dangerous and undesirable situation.
1) The people took a hegira to escape their war-weary country.
2) To escape the rule of a brutal dictator, the people attempted a dangerous hegira across the ocean.
The hegira, migration of Hazrat Mohammad(P.B.U.H) from Mecca to Madina in 622 A.D, from Medieval Latin, from Arabic hijra which means 'departure'.
Furthermore, Hazrat is an Arabic title used to honour a person.