POACH (3)

Poach, v. t. [[Cf. OF. pocher to thrust or dig out with the fingers, to bruise (the eyes), F. pouce thumb, L. pollex, and also E. poach to cook eggs, to plunder, and poke to thrust against.]] 1. 1. To stab; to pierce; to spear, as fish. Carew.
2. 2. To force, drive, or plunge into anything.
His horse poching one of his legs into some hollow ground. Sir W. Temple. 3. 3. To make soft or muddy by trampling. Tennyson.
4. 4. To begin and not complete. Bacon.