vest

verb

1. : to place in the possession, discretion, or province of some person or authority all legislative powers herein granted shall be vested in a Congress of the United States —U.S. Constitution art. I a timely notice of appeal vests jurisdiction in the appeals court specifically : to give to a person a fixed and immediate right of present or future enjoyment of (as an estate) an interest vested in the beneficiary : to give to a person a fixed and immediate right of present or future enjoyment of (as an estate) an interest vested in the beneficiary

2. : to grant or endow with a particular authority, right, or property vest a judge with discretion

   : to become vested; specifically : to entitle one unconditionally to the payment of pension benefits upon termination or retirement his pension interest will vest after ten years with the company — compare mature : to entitle one unconditionally to the payment of pension benefits upon termination or retirement his pension interest will vest after ten years with the company — compare mature