Surname
Part of speech: noun
Definition: A name that indicates to which family a person belongs, normally following that person's given name(s) in Western culture, and preceding it in Eastern.
Part of speech: verb
Definition: To give a surname. To call by a surname.
Cognomen
Part of speech: noun
Definition: surnamethe third part of the name of a citizen of ancient Romea nickname or epithet by which someone is identified; a moniker or sobriquet
