foundling

löytölapsi An abandoned child, left by its parent(s), often a baby left at a convent or similar safe place.
1749, (w), s:The History of Tom Jones, a Foundling|The History of Tom Jones, a Foundling.
1776, (w), s:The Wealth of Nations/Book I/Chapter 8|An Inquiry into the Nature and Causes of the Wealth of Nations,

In foundling hospitals, and among the children brought up by parish charities, the mortality is still greater than among those of the common people.

Moses was a foundling; Jesus Christ was born in a stable; and Mahomet was a mule driver.