Akademik

change|ling
change|ling «CHAYNJ lihng», noun.
1. a child secretly left in place of another: »

She may have been…a changeling—the adopted daughter of gypsies (Time).

2. a strange, stupid, or ugly child, supposed to have been left by fairies in place of a child carried off by them.
3. Archaic. a person given to change; fickle or inconstant person; waverer; turncoat; renegade.
4. Archaic. a half-witted person; idiot; imbecile.
[< change + -ling]

Useful english dictionary. 2012.