Pronunciation: [ sood-n-im ]
a fictitious name used by an author to conceal his or her identity; pen name
Origin: Early 19th century; Greek
Etymology: from French pseudonyme, from Greek pseudōnymos, from pseudēs ‘false’ + onuma ‘name’
Example: J.K. Rowling published her "Cormoran Strike" novels under the pseudonym Robert Galbraith.