3d pers. sing. pres. of Grind, contr. from grindeth. [ Obs. ] Chaucer. [ 1913 Webster ]
obs. imp. of Grin, v. i., 1. [ 1913 Webster ]
[ He ] grinte with his teeth, so was he wroth. Chaucer. [ 1913 Webster ]
n. Grinding. [ Obs. ] Chaucer. [ 1913 Webster ]