vbl. sb. [f. UNTRUSS v.] The action of the vb., chiefly in fig. senses.
1597. Return fr. Parnass., II. i. 762. One that will give his scholler leave to prove as verie a dunce as his father and nere commaunde the untrussinge of his points.
1601. B. Jonson, Poetaster, IV. vii. Come, weell goe see how forward our iourney-man is toward the vntrussing of him.
1602. Dekker (title), Satiro-Mastix, or, the Untrussing of the Humorous Poet.
1603. Shaks., Meas. for M., III. ii. 190. Marrie this Claudio is condemned for vntrussing.