Exercise
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
To make use of. Thus, to exercise a right or power is to do something which it enables the holder to do.
U. S. v. Souders, 27 Fed. Cas. 1267; Cleaver v. Comm., 34 Pa. 284; Branch v. Glass Works, 95 Ga. 573, 23 S. E. 128.