Surname is defined as the family or last name.(noun)
An example of a surname is Smith when the person's full name is John Smith.
See surname in Webster's New World College Dictionary
Origin: ME < sur- (see sur-) + name, infl. by earlier surnoun < OFr surnom < sur- + nom < L nomen, name
See surname in American Heritage Dictionary 4
Origin: Middle English
Origin: , partial translation of Old French surnom
Origin: : sur-, sur-
Origin: + nom, name.
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