-onym

American

a combining form of Greek origin, meaning “word,” “name”.

pseudonym.

-onym British

combining form

indicating a name or word

acronym
pseudonym

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of -onym

Ultimately < Greek -ōnymos having the kind of name specified, combining form representing ónyma, dialectal variant of ónoma name

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023