What was the name of the union of several genera closely related by origin?

In ancient times, there was a special system of relations between people. The union of several clans closely related in origin was called a clan tribe. A hierarchy was developed in it, which allowed maintaining the tribes in a stable position and distributing the resources obtained. The chiefs and their assistants were in charge of the participants in the tribal education. Gradually, such organizations became ineffective. From them, neighboring communities began to form, built on other forms of human interaction.