secure

To make safe; to relieve from apprehensions of, or exposure to, danger; to guard; to protect.

To put beyond hazard of losing or of not receiving; to make certain; to assure; frequently with against or from, or formerly with of.

To make fast; to close or confine effectually; to render incapable of getting loose or escaping.

To get possession of; to make oneself secure of; to acquire certainly.

(transitive, obsolete) To plight or pledge.