[re.but] vb re.but.ted ; re.but.ting [ME, fr. MF reboter, fr. re- + boter to butt--more at butt] vt (14c) 1: to drive or beat back: repel
2. a: to contradict or oppose by formal legal argument, plea, or countervailing proof b: to expose the falsity of: refute ~ vi: to make or furnish an answer or counter proof -- re.but.ta.ble adj