In Spanish law. Certain portions of ground laid off and reserved when a town was founded in Span-ish America as the unalienable property of the town, for the purpose of erecting public bulldings, markets, etc., or to be used in any other way, under the direction of the munic-ipality, for the advancement of the revenues or the prosperity of the place. 12 Fet. 442, note
Source: Black's Law Dictionary 2nd Ed (1910)