The Nieqidar, Ewen, and Ewenqi languages in the var ious Tungusic languages in the Siberian regions in Russia are closely interrelat ed.

The kin terms in Old Egyptian have different origins and varied structures,which reveals an exhibition of the Ancient Egyptians kinship nomenclature as Sudanese kin terminology partly including some feature of Eskimo kin terminology;and moreover,the female or maternal kinship words are featured with the relatively minute differentiation.