Learn how to say Misnomer correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word misnomer:
a wrong or inaccurate name or designation:
‘King crab’ is a misnomer—these creatures are not crustaceans at all
a wrong or inaccurate use of a name or term:
to call this ‘neighbourhood policing’ would be a misnomer
late Middle English: from Anglo-Norman French, from the Old French verb mesnommer, from mes- ‘wrongly’ + nommer ‘to name’ (based on Latin nomen ‘name’)