nomen

/ˈnoʊmən/
noun
  1. The second part of a Roman citizen's full name, indicating the gens (clan or family).
    • In ancient Rome, a person's nomen showed which clan they belonged to.
    • The nomen was an important marker of social status in Roman society.
    • Gaius Julius Caesar's nomen was 'Julius.'
  2. A name or designation, especially in scientific or formal contexts.
    • Each chemical compound has a systematic nomen.
    • The nomen of the plant was listed in the botanical catalog.
    • The biologist assigned a Latin nomen to the new species.
Synonyms
What does "nomen" mean? | whatsthatwordmean | whatsthatwordmean