a. Obs.1 [ad. L. unciāri-us, f. uncia UNCIA. Hence also F. onciaire.] Amounting to a twelfth part. (Wrongly explained in quot.)
1586. T. B., La Primaud. Fr. Acad., I. 497. There was a lawe amongst the ancient Grecians and Romanes, which forbad all usurie surmounting one pennie for a hundred by the yeere, and they called it vnciarie vsurie.