[un.der.cut] vb -cut ; -cut.ting vt (1598) 1: to cut away the underpart of "~ a vein of ore"
2: to cut away material from the underside of (an object) so as to leave an overhanging portion in relief
3: to offer to sell at lower prices than or to work for lower wages than (a competitor)
4: to cut obliquely into (a tree) below the main cut and on the side toward which the tree will fall
5: to strike (a ball) with a downward glancing blow so as to give a backspin or elevation to the shot
6: to undermine or destroy the force, value, or effectiveness of "inflation ~s consumer buying power" ~ vi: to perform the action of cutting away beneath
[2]un.der.cut n (1859) 1 Brit: tenderloin 1
2: the action or result of cutting away from the underside or lower part of something
3: a notch cut in the base of a tree before felling to determine the direction of falling and to prevent splitting