calpulli

(from the article `pre-Columbian civilizations`) A number of households, varying from a few score to several hundred, were organized into an internally complex corporate group referred to as a ... ...and functions of which were poorly understood by Spanish chroniclers (and continue to be debated among anthropologists). For example, the ...
Found on http://www.britannica.com/eb/a-z/c/9

Calpulli

In precolumbian Aztec society a Calpulli (from the Nahuatl kaɬˈpoːlli, meaning "large house") was the designation of an organizational unit below the level of the Altepetl "citystate". A Nahua citystate was divided into a number of calpullis that each constituted a unit where the calpulli inhabitants were collectively responsible for differ...
Found on http://en.wikipedia.org/wiki/Calpulli
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