vbl. sb. Obs. rare. [f. VAIL v.2] The action of the vb.; a descent.
1593. Marlowe, Edw. II., I. ii. And happie is the man, whom he vouchsafes For vailing of his bonnet one good looke.
1624. Wotton, Archit., in Reliq. (1672), 64. The Beholder descending many steps was afterwards conveyed again by several mountings and valings to various entertainments of his sent and sight.