What is a synonym for "fosterling"?

Common synonyms include: foster child, foster-child.

Fosterling

noun

noun ·Rare ·Advanced level

Noun

1
a foster child
"'We know him indeed, this boy,' said Conall Cernach, 'and we know him none the worse that he is a fosterling of ours."
2
a child who is raised by foster parents wordnet

"'We know him indeed, this boy,' said Conall Cernach, 'and we know him none the worse that he is a fosterling of ours."

From Middle English fosterling, from Old English fōstorling, equivalent to foster + -ling.