1.Barter
exchange (goods or services) for other goods or services without using money.
2.Bureaucracy
a system of government in which most of the important decisions are made by state officials rather than by elected representatives.
3.Caste System
a class structure that is determined by birth. Loosely, it means that in some societies, if your parents are poor, you're going to be poor, too. Same goes for being rich, if you're a glass-half-full person.
4.Clan
a group of close-knit and interrelated families (especially associated with families in the Scottish Highlands)
5.Cuneiform
denoting or relating to the wedge-shaped characters used in the ancient writing systems of Mesopotamia, Persia, and Ugarit, surviving mainly impressed on clay tablets.
6.Elite
a select group that is superior in terms of ability or qualities to the rest of a group or society.
7.Famine
extreme scarcity of food.
8.Kush
a variety or strain of the indica subspecies of cannabis plant.
9.monotheistic
relating to or characterized by the belief that there is only one God.
10.Osiris
the god of fertility, agriculture, the afterlife, the dead, resurrection, life, and vegetation in ancient Egyptian religion.
11.Polytheistic
relating to or characterized by belief in or worship of more than one god.
12.Sacred
connected with God (or the gods) or dedicated to a religious purpose and so deserving veneration.
13.Subcontinent
a large, distinguishable part of a continent, such as North America or southern Africa.
14.Traditional economy
an economic system in which traditions, customs, and beliefs help shape the goods and services the economy produces, as well as the rules and manner of their distribution.
15.ziggurat
a rectangular stepped tower, sometimes surmounted by a temple.
you might need to rephrase it because the answers are from the dictionary