changeling

Etymology
The is derived from. Sense 6 (“idiot, simpleton”) is from the idea that foolish children had been left by magical creatures (sense 1).

The is derived from the noun.

Noun

 * 1)  In pre-modern European folklore: an infant of a magical creature that was secretly exchanged for a human infant. In British, Irish and Scandinavian mythology the exchanged infants were thought to be those of fairies, sprites or trolls; in other places, they were ascribed to demons, devils, or witches.
 * 2)  A person or object (especially when regarded as inferior) secretly exchanged for something else.
 * 3)  An infant secretly exchanged with another infant deliberately or by mistake; a swapling.
 * 4)  An organism which can change shape to mimic others; a shape-shifter.
 * 5)  A person apt to change their loyalty or thinking; a waverer.
 * 6)  An idiot, a simpleton.
 * 1)  A person or object (especially when regarded as inferior) secretly exchanged for something else.
 * 2)  An infant secretly exchanged with another infant deliberately or by mistake; a swapling.
 * 3)  An organism which can change shape to mimic others; a shape-shifter.
 * 4)  A person apt to change their loyalty or thinking; a waverer.
 * 5)  An idiot, a simpleton.
 * 1)  A person apt to change their loyalty or thinking; a waverer.
 * 2)  An idiot, a simpleton.
 * 1)  An idiot, a simpleton.
 * 1)  An idiot, a simpleton.
 * 1)  An idiot, a simpleton.
 * 1)  An idiot, a simpleton.
 * 1)  An idiot, a simpleton.

Translations

 * Arabic: خائن
 * Chinese:
 * Mandarin: 調換兒
 * Danish: skifting
 * Dutch: wisselbalg,
 * Finnish:
 * French: ,
 * German:, Kielkropf, , Wechselkind
 * Icelandic: umskiptingur
 * Irish: carrachán linbh, fágálach, iarmhar, iarlais, malartán, páiste a tugadh as, síofra, síogaí linbh
 * Japanese:, 取り替え子
 * Latin: cambiō
 * Manx: faagailagh, lhiannoo shee
 * Navajo: nádleehé
 * Persian: ,
 * Polish:
 * Russian:
 * Scots: ta'en-awa', witch-wean
 * Scottish Gaelic: sìthbheire, tàchaire, tàcharan, tàcharan-sìthe
 * Serbo-Croatian: promenant
 * Spanish: niño cambiado
 * Swedish:
 * Welsh: plentyn cael

Adjective

 * 1)  Changeable, fickle, inconstant, wavering.