Obs. [UNDER-1 6 b.] = SUBTRIPLE. So † Under-triplat, -triple. Obs.
1430. Art of Nombryng (E.E.T.S.), 17. That triplat is to be put under the .3 next figure And the vnder-trebille vnder the trebille. Ibid. And than most thow fynde a digit the whiche withe his vnder-triplat sittethe away all that is ouer his hede. Ibid., 18. It is open that the nombre proposede was a cubike nombre, And his rote a digit founde last with the vnder-triples.