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Webster 1913 Edition
Heterophemy
Hetˊer-oph′e-my
,Noun.
[
Hetero-
+ Gr. [GREEK] voice, speech, fr. [GREEK] to speak.] The unconscious saying, in speech or in writing, of that which one does not intend to say; – frequently the very reverse of the thought which is present to consciousness.
R. G. White.