1. 
[syn: nickname, moniker, cognomen, sobriquet, soubriquet, byname]
The Collaborative International Dictionary of English v.0.48:
By-name \By"-name`\, n.
   A nickname. --Camden.
   [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Byname \By"name`\, v. t.
   To give a nickname to. --Camden.
   [1913 Webster]
WordNet (r) 3.0 (2006):
byname
    n 1: a familiar name for a person (often a shortened version of
         a person's given name); "Joe's mother would not use his
         nickname and always called him Joseph"; "Henry's nickname
         was Slim" [syn: nickname, moniker, cognomen,
         sobriquet, soubriquet, byname]