Definify.com
Webster 1913 Edition
Undeceive
Unˊde-ceive′
,Verb.
T.
[1st pref.
un-
+ deceive
.] To cause to be no longer deceived; to free from deception, fraud, fallacy, or mistake.
South.
Webster 1828 Edition
Undeceive
UNDECE'IVE
,Verb.
T.