GULLY

I. noun (plural gullies) Etymology: short for English dialect ~ knife Date: 1582 a large knife, II. noun also gulley (plural gullies) Etymology: obsolete English ~ gullet, probably alteration of Middle English golet ravine, throat Date: 1637 a trench which was originally worn in the earth by running water and through which water often runs after rains, a small valley or gulch, III. verb (gullied; ~ing) Date: 1754 transitive verb to make gullies in, intransitive verb to undergo erosion ; form gullies