Difference between Monikers and Cognomen

MONIKERS vs COGNOMEN: NOUN

Plural form of moniker.
A familiar name for a person (often a shortened version of a person's given name)

A nickname or epithet by which someone is identified; a byname; a moniker or sobriquet
The third part of the name of a citizen of ancient Rome
Surname
A surname.
The last of the three names of a person among the ancient Romans, denoting his house or family.
Loosely, a name, whether a given name, surname, or distinguishing epithet.
A surname; a distinguishing name; specifically, the last of the three names by which a Roman of good family was known, indicating the house to which he belonged. See name.
A name, especially a descriptive nickname or epithet acquired through usage over a period of time.
The third and usually last name of a citizen of ancient Rome, as Caesar in Gaius Julius Caesar.
A family name; a surname.
A familiar name for a person (often a shortened version of a person's given name)
The name used to identify the members of a family (as distinguished from each member's given name)

Surnames, Adjective, Nom de plume, Spellings, Connotations, Prefix, Nomenclature, Name, Monickers, Monicker, Nicknames, Cognomen, Soubriquet, Sobriquet, Nickname

Pater, Diety, Mysterium, Pacem, Forsooth, Eponym, Genitive, Forename, Family name, Last name, Surname, Nickname, Moniker, Soubriquet, Sobriquet

Diminutives, Suffix, Forename, Appellation, Descriptor, Surnames, Adjective, Nom de plume, Spellings, Prefix, Name, Cognomen, Soubriquet, Sobriquet, Nickname

Pater, Diety, Mysterium, Pacem, Forsooth, Eponym, Genitive, Forename, Family name, Last name, Surname, Nickname, Moniker, Soubriquet, Sobriquet

These monikers represent the qualities for which individuals and groups are best known.
Below are the monikers of some famous felines, both real and imagined.
But FOSL and EGO were the main monikers cited by a prosecutor.
Inspired Names Let these enticing monikers whet your naming appetite.
That she earned those monikers without controversy says it all.
Monikers is a fun party game to play in teams.
Let these enticing monikers whet your naming appetite.
Cleveland has had one or two regrettable monikers.
Release all existing monikers before loading the state.
Sean Combs in being known by different monikers.

English heathlands did not enjoy the entire monopoly in the production of this familiar cognomen.
Thus my initial thought that this person might be just another shill for Big Oil using a cognomen.
Prefix include addition, adjunct, affix prefix for sincere foresyllable, prefixum, cognomen designation.
As a reward for his success, Publius Cornelius Scipio was awared the cognomen Africanus.
This cognomen now distinguishes them from the blacks who used to be Negroes.
Elsie for bestowing the unlucky cognomen upon my unoffending self.
Packard recommended tile cognomen to Governor Musgrave, who adopted it.
Indians, who boro the expressive cognomen of Saucy Nick.
OT over thirty individuals were given this cognomen.
Now Patsy is also a common Irish cognomen.