[UN-2 4 b.] trans. To free (a horse) from the bit. Also absol.

1

1565–6.  Blundevil, Horsemanship, IV. lxx. (1580), 29 b. Then vnbitte him, and if it bee in Winter, offer him a hande full of Wheaten strawe.

2

1639.  T. de Gray, Expert Farrier, 116. Let him stand upon his trench four or five houres,… then unbit him, and give him sweet hay.

3

1661.  J. Davies, trans. Olearius’ Voy. Ambass., 228. We were told the Herb of it is … venemous,… upon which accompt it was, that we durst not unbit that day.

4

1775.  S. J. Pratt, Liberal Opin., cxi. (1783), IV. 51. Jack Bookwit … unbitted his horse.

5