changeling (1 now obsolete or archaic)
1.
fickle or
inconstant person
1H4 V. i. 76
“fickle c-s,”
Cor. IV. vii. 11
“his nature In that's no
changeling.”
2.
child left by the
fairies in exchange for one stolen MND. II. i. 23; attrib.
II. i. 120, IV. i. 65; fig. of a
letter substituted for another Ham. V. ii. 53.