Languages and cultures

Roman Names: Praenomen, Nomen and Cognomen

At a glance

A Roman citizen man of the late Republic usually had three names, the tria nomina: a personal name such as Marcus, a family name such as Tullius, and a cognomen such as Cicero. Only a small set of personal names was in use, so they were normally written as abbreviations. Women were usually known by the feminine form of their father's family name, such as Tullia or Julia.

The three names
praenomen (personal), nomen (family or clan), cognomen (extra name, often inherited)
Personal names in use
about 17 in the Republic, e.g. Gaius (C.), Gnaeus (Cn.), Lucius (L.), Marcus (M.), Publius (P.), Quintus (Q.)
Women's names
the feminine of the father's nomen: Tullius → Tullia, Julius → Julia
Extra honorary name
agnomen, e.g. Africanus for Scipio

Roman names and what they tell you

NameMeaning or originStatus
Marcus Tullius Cicero
Latin
Marcus of the Tullius family, with the cognomen Cicero [1]Recorded
Cicero
Latin
from cicer, 'chickpea'; why an ancestor got the nickname is only a story [4]Recorded
Tullia
Latin
Cicero's daughter, named with the feminine of Tullius [2]Recorded
Julia
Latin
Julius Caesar's daughter, named with the feminine of Julius [2]Recorded
Gaius Julius Caesar
Latin
C. Julius Caesar: praenomen, nomen, cognomen [1]Recorded
Caesar
Latin
origin disputed: ancient writers offered several explanations, and none is certain [2]Uncertain
Publius Cornelius Scipio Africanus
Latin
the agnomen Africanus marks his victory over Carthage in Africa [2]Recorded
Marcus Tullius Tiro
Latin
Cicero's freed slave, with his patron's praenomen and nomen and his own name as cognomen [5]Recorded
Gaius Julius Caesar Octavianus
Latin
Octavius after his adoption by Caesar; the -ianus form records his birth family [2]Recorded
Publius Ovidius Naso
Latin
the poet Ovid; Naso comes from nasus, 'nose' [3]Recorded
Brutus
Latin
the word brutus means 'heavy, dull'; how the family came by it is told in legend, not record [2]Uncertain
Gnaeus Mucius Felix
Latin style
a real praenomen, nomen and cognomen (felix, 'lucky') put together by our Roman name generatorBuilt from real parts
  • Recorded Found in historical records.
  • Uncertain The origin or meaning is disputed or unproven.
  • Built from real parts Made by us from genuine word elements.

Three names for a citizen

By the late Republic, a Roman citizen man normally had three names. The praenomen was his personal name, the nomen (or nomen gentilicium) named his gens, the wider family or clan, and the cognomen was an extra name that often marked one branch of that family.[1][2] In Marcus Tullius Cicero, Marcus is the personal name, Tullius the family and Cicero the branch.

The system grew over centuries. Early Romans managed with a personal name and a family name, cognomina spread among the upper classes later, and under the Empire people often collected more names still, through adoption and inheritance.[1] The three-name pattern is best thought of as typical of the late Republic rather than a fixed rule for all of Roman history.

A short list of first names

Romans used very few personal names. Salway notes that almost all Republican men whose names are known had one of about seventeen praenomina, so the praenomen did little more than tell brothers apart.[1] Because everyone knew them, they were written as standard abbreviations: A. Aulus, C. Gaius, Cn. Gnaeus, D. Decimus, L. Lucius, M. Marcus, M'. Manius, P. Publius, Q. Quintus, Sex. Sextus, T. Titus and Ti. Tiberius among them.[3]

Gaius and Gnaeus are abbreviated with a C because the abbreviations were fixed before Latin had a separate letter G.[3] Some families also favoured particular praenomina and avoided others, which is why the same personal names repeat down generations of one family.

Reading a name on an inscription

Official records and inscriptions often give more than the three names. After the nomen came the filiation, naming the man's father by his praenomen: M. f. for Marci filius, son of Marcus. A citizen's voting tribe could follow, also abbreviated.[3][1] So Cicero's own name, written formally, is M. Tullius M. f. Cicero: Marcus Tullius Cicero, son of Marcus.

That is why so many Roman names reach us as strings of initials. Once you know the short list of praenomina and their abbreviations, most of them can be read straight off the stone.

Women, freed slaves and adopted sons

Women were usually known by the feminine form of their father's nomen. Cicero's daughter was Tullia and Julius Caesar's daughter was Julia.[2] Sisters could share a name exactly, so they were told apart with words such as Maior (elder) and Minor (younger), or with numbers such as Tertia (third).

Freed slaves took the praenomen and nomen of the person who freed them and kept their old name as a cognomen. When Cicero freed his secretary Tiro, Tiro became Marcus Tullius Tiro.[5] A freedman's name therefore shows whose household he came from.

Adopted sons took the full name of their new father and often added a form of their old family name ending in -ianus. Gaius Octavius, adopted in Julius Caesar's will, became Gaius Julius Caesar; historians call him Octavianus, or Octavian, after his birth family, though he did not use that name himself.[2]

Cognomina: nicknames that stuck

Many cognomina began as nicknames for a feature or a habit, and families kept them long after anyone remembered why. Cicero comes from cicer, the chickpea. Plutarch says an ancestor had a cleft on the tip of his nose shaped like one, but that is a later story, not a record.[4] Naso, the cognomen of the poet Ovid, comes from nasus, nose.[3]

Some popular explanations are less secure. Brutus is the Latin word for heavy or dull, and Roman legend says the founder of the Republic pretended to be slow-witted, but the story can't be checked. Caesar is the most famous case: ancient writers offered several explanations, and no one knows which, if any, is right.[2]

An agnomen was a further name earned or added later. Publius Cornelius Scipio was called Africanus for his victory over Carthage in Africa, and the honour passed into the family name.[2]

Put it to use

Related in the Naming Library

Frequently Asked Questions

What are the three parts of a Roman name?
The praenomen (a personal name such as Marcus), the nomen (the family or clan name, such as Tullius) and the cognomen (an extra name, often inherited, such as Cicero). Together they're called the tria nomina.
How were Roman women named?
Usually with the feminine form of their father's family name, so a daughter of the Tullius family was Tullia. Sisters were told apart with words like Maior (elder) and Minor (younger), or with numbers such as Tertia.
What does Cicero mean?
It comes from the Latin cicer, chickpea. It began as a nickname for an ancestor; the story that he had a chickpea-shaped mark on his nose comes from Plutarch and can't be confirmed.

Sources

  1. Benet Salway, What's in a Name? A Survey of Roman Onomastic Practice from c. 700 B.C. to A.D. 700, Journal of Roman Studies 84, pp. 124–145 (1994).
  2. Simon Hornblower, Antony Spawforth and Esther Eidinow (eds), The Oxford Classical Dictionary, 4th edition: 'names, personal, Roman', Oxford University Press (2012).
  3. J. B. Greenough and others, Allen and Greenough's New Latin Grammar, section 108: Roman names, Ginn and Company (1903).
  4. Plutarch, Life of Cicero, chapter 1, Loeb Classical Library (trans. Bernadotte Perrin) (1919).
  5. Barbara F. McManus, Roman Nomenclature. Checked 12 November 2026.

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