To cut off.
Behold, the Lord, the LORD of hosts, shall LOP the bough with terror: and the high ones of stature shall be hewn down, and the haughty shall be humbled. And he shall cut down the thickets of the forest with iron, and Lebanon shall fall by a mighty one. ( Isaiah 10:33-34 )
Bibliography Information"Entry for 'Lop'". A King James Dictionary.