Search Result for "backronym":

The Jargon File (version 4.4.7, 29 Dec 2003):

backronym n. [portmanteau of back + acronym] A word interpreted as an acronym that was not originally so intended. This is a special case of what linguists call back formation. Examples are given under recursive acronym (Cygnus), Acme, and mung. Discovering backronyms is a common form of wordplay among hackers. Compare retcon.
The Free On-line Dictionary of Computing (30 December 2018):

backronym (Backward acronym) A word which has been turned into an acronym by inventing an expansion, rather than the other way around. E.g. "ping". (2005-06-22)