A familiar name for a person (often a shortened version of a person's given name). Synonyms:byname, cognomen, moniker, nickname, sobriquet."Henry's nickname was Slim"
... of ten years, who went by the soubriquet of the baby, by all except Lewis, who understood her better ... — The American Family Robinson - or, The Adventures of a Family lost in the Great Desert of the West • D. W. Belisle
...
