O1V4E1R1C3R1O1P3P3I1N1G2
22 points
OVERCROPPING is validvalid
OVERCROP, to exhaust the fertility of by cultivating to excess [v]
OVERCROP, to exhaust the land [v]
OVERCROP, to exhaust the fertility of by cultivating to excess [v]
OVERCROP, to exhaust the land [v]