a. Obs. Forms: 4 vaill-, 5 vayllaunt, vayl-, vailant. [a. OF. vaill-, vailant, pres. pple. of valoir to be of use, etc.: see VAIL v.1] Of avail, advantage, or value; valid.
a. 1325. MS. Rawl. B., 520, fol. 56 b. Þanne nere þat ȝifte noȝt vaillaunt þe wile þat a miȝtte be repeled of þe Eir. Ibid., 61 b. Þulke excepcion is vaillaunt ase to þe writ of possession.
1422. Yonge, trans. Secreta Secret., 125. New Ensamplis that oryson is moch vaylant agaynys the Malice of ennemys.
c. 1450. trans. De Imitatione, III. vi. 71. It [sc. love] is vailant þerfore to all þinges.
