A fictitious name, especially one used by an author.
Early 19th century from French pseudonyme, from Greek pseudōnymos, from pseudēs ‘false’ + onuma ‘name’.
Frank made a modest living selling barn burner romance novels using the pseudonym, Sue Downing. Nobody cared.
Hey! Didn't you first say "metronym"?
Mother's maiden name...
This is way cool fun.
And, of course, I love the newly spelled "metonym".
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko