[Special sense of kench, canch, current in various dialects with the senses of ‘slice, cut, section, etc.’ See Eng. Dial. Dict., s.v. Canch.] A strip or slice of an arable field containing a number of furrows.

1

1799.  J. Robertson, Agric. Perth, 62. The first deviation from run-rig was by dividing the farms into kavels or kenches, by which every field … was split down into as many lots as there were tenants.

2