paralogism

par·a·lo·gi·a

, paralogism , paralogy (par'ă-lō'jē-ă, pă-ral'ŏ-jizm, -jē)

False reasoning, involving self-deception.

[G. paralogia, a fallacy, fr. para, beside, + logos, reason]

paralogism

(par?a-lo'jiz-em)

An incorrectly chosen word inserted into speech, esp. in patients with fluent aphasias.

See: neologism; paraphasia