the world > the earth > land > landscape > marsh, bog, or swamp > [noun] > wet place, mire, or slough > miry quality
1707 J. Mortimer i. 41 The lower vallies, because of the poachiness of them, they keep for Grass.
1927–9 H. Wheeler V. 3312/1 Such land is said to be poachy..and its poachiness..can only be cured by draining.