Guardian

(gird'ĭ-an), n. [O. Fr. guardain, gardian, N. Fr. gardien, Pr. & Sp. guardian, It. guardiano, L. Lat. guardianus. See GUARD, v.]

1. One who guards, preserves, or secures; one to whom any person or thing is committed for protection, security, or preservation from injury; a warden.
2. (Law.) One who has, or is entitled to, the custody of the person or property of an infant, a minor without living parents, or a person who is incapable of managing his own affairs.