catachresis
PRONUNCIATION:(kat-uh-KREE-sis) The misuse of words.
Here’s a catchall word for all those mixed metaphors, malapropisms, and bushisms. It derives via Latin from Greek katakhresthai (to misuse).
parapraxis
PRONUNCIATION: (par-uh-PRAK-sis)
noun: A slip of the tongue (or pen) that reveals the unconscious mind.
ETYMOLOGY:
Parapraxis is a fancy word for the Freudian slip. It’s derived from Greek para- (beside, beyond) + praxis (act).
–both via A.Word.A.Day (wordsmith.org).