Fosterage

Fosterage, the practice of a family bringing up a child not their own, differs from adoption in that the child's parents, not the foster-parents, remain the acknowledged parents. In many modern western societies foster care can be organised by the state to care for children with troubled family backgrounds, usually on a temporary basis. In many pre-modern societies fosterage was a form of patronage, whereby influential families cemented political relationships by bringing up each other's children, similar to arranged marriages, also based on dynastic or alliance calculations.

This practice was once common in Ireland, Wales, and Scotland.

Fosterage in the Hebrides

In his A Journey to the Western Isles of Scotland (1775), writer Samuel Johnson described the fosterage custom as he saw it practised.

Literary fosterage

In Ancient Ireland, ollams taught children either for payment or for no compensation. Children were taught a particular trade and treated like family; their original family ties were often severed.