The aim of this paper is to investigate some aspects of fictive kinship in ancient Sumer that we find out through administrative, legal and literary texts. From the NeoSumerian period several texts of different nature have survived, which constitutes a breeding ground for this kind of study. In anthropological studies the kinship terminology is considered fundamental to understand the structure and dynamics of human societies. It seems that, both in Sumerian and in Akkadian, the terms of kinship are reduced to the first kinship degree, and are not used to express different relationships, but they are unambiguous. Some scholars (Civil 1974; Götzelt 1995) tried to compare Sumerian terminology with other better-known systems, but ...