Tuath dictionary definition

Each provincial kingdom and each tuath had assemblies of its own.
The tuath was the political unit, and the ruler of it was the lowest to whom the term "king" was applied.
Tuath, Cinel and Clann were synonyms meaning a small tribe or nation descended from a common ancestor.
The flaiths in every tuath and all ranks of society were organized on the same hierarchical pattern as royalty.
All the bishops in a coenobium were subject to the abbot; but besides the bishop in the monastic families, every tuath or tribe had its own bishop. The church in Ireland having been evolved out of the monastic nuclei already described the tribe bishop was an episcopal development of a somewhat later period.