%surbate%

v. t. [ imp. & p. p. Surbated; p. pr. & vb. n. Surbating. ] [ F. solbatu, p. p., bruised (said of a horse's foot); sole a sole (of a horse's foot) + battu, p. p. of battre to beat. ] 1. To make sore or bruise, as the feet by travel. [ Obs. ] [ 1913 Webster ]

Lest they their fins should bruise, and surbate sore
Their tender feet upon the stony ground. Spenser. [ 1913 Webster ]

Chalky land surbates and spoils oxen's feet. Mortimer. [ 1913 Webster ]

2. To harass; to fatigue. [ Obs. ] Clarendon. [ 1913 Webster ]