practice of a family bringing up a child not their own

Fosterage is an arrangement in which a child is brought up with a family that is not their own. It is different from foster care, which is a legal arrangement made for a child's safety. Fosterage can describe many different arrangements according to the society they belong to. In many parts of the world there are societies where the children do not live with their parents. This may be linked to the society's special way of life.