Part of speech: Noun
a familiar name for a person (often a shortened version of a person's given name)
Example: Joe's mother would not use his nickname and always called him Joseph; Henry's nickname was Slim
The word "byname" Many other languages have similar words:
by- – A related word in the same word family.
name – A related word in the same word family.
Related words show how one ancient root could spawn dozens of modern meanings.