A kinship group constituting an intermediate division in the primitive structure of the Hellenic tribe or phyle, consisting of several patrilinear clans, and surviving in classical times as a territorial subdivision in the political and military organization of the Athenian state.
Anthropology An exogamous subdivision of the tribe, constituting two or more related clans.
Origin:
Origin: Greek phrātriā
Origin: , from phrātēr, phrātr-, fellow member of a clan; see bhrāter- in Indo-European roots