Meaning of the word cognomen in English

What does cognomen mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

cognomen

US /kɑːɡˈnoʊ.mən/
UK /kɒɡˈnəʊ.men/

Noun

a name or nickname (= an informal name given to someone by their friends, family, etc.), especially one that describes someone or something:

Example:
The heinous nature of his crime earned him the cognomen "monster."