# cognomen

> English word · Noun · IPA /kɒɡˈnoʊ.mən/

## Definitions
1. A personal epithet or clan name added to the given name and family name of Ancient Romans.
2. Synonym of nickname, any epithet used similar to the Roman cognomina.
3. Synonym of surname, a family name.

## Etymology
From Latin cognōmen, from con- (“with”) + nōmen (“name; family name”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/cognomen