UNDECEIVE
undeceive
(verb) free from deception or illusion
Source: WordNet® 3.1
Etymology
Verb
undeceive (third-person singular simple present undeceives, present participle undeceiving, simple past and past participle undeceived)
(transitive) To free from misconception, deception or error.
Synonyms
• disabuse
Source: Wiktionary
Un`de*ceive", v. t. Etym: [1st pref. un- + deceive.]
Definition: To cause to be no longer deceived; to free from deception,
fraud, fallacy, or mistake. South.
Source: Webster’s Unabridged Dictionary 1913 Edition