safeguar

n. [ Safe = guard: cf. F. sauvegarde. ] 1. One who, or that which, defends or protects; defense; protection. Shak. [ 1913 Webster ]

Thy sword, the safeguard of thy brother's throne. Granville. [ 1913 Webster ]

2. A convoy or guard to protect a traveler or property. [ 1913 Webster ]

3. A pass; a passport; a safe-conduct. Shak. [ 1913 Webster ]