foundling
/ˈfaʊndlɪŋ/Definitions
1. noun
An infant or young child abandoned or deserted by its parents, typically without a known family or support.
“The charity helped care for the many foundlings in the city.”
2. noun
A person who is found or discovered, especially unexpectedly or in an obscure place.
“The archaeologists uncovered a long-lost city, home to a mysterious foundling tribe.”