Obs. rare. Also 5 -ayle. [f. SUPPORT v. + -AL 5. († -aile).] = SUPPORT sb. 1, 5.
14[?]. in Tundales Vis. (1843), 97. Thou art oure scheld and oure supportayle.
1574. J. Dee, in Lett. Lit. Men (Camden), 34. Uppon hope, that som nedefull supportal wold be for me devysed.
a. 1618. Sylvester, Miracle of Peace, iii. Thou Nurse of Vertues, Muses chief supportall.