In Spanish and Mexican law. Taxes imposed by municipalities on certain articles of merchandise, to defray the general expenses of government, in default of revenues from “proprios,” i. e., lands own-ed by the municipality, or the income of which was legally set apart for Its support. Sometimes used in a wider seuse, as meaning the resources of a town, Including its privileges In the royal lands as well as the taxes. Esericlie Dict.; Sheldon v. Milmo, 90 Tex. 1, 36 S. W. 413
Source: Black's Law Dictionary 2nd Ed (1910)