Bible Dictionaries
Cognomen

Webster's Dictionary

(1):

(n.) The last of the three names of a person among the ancient Romans, denoting his house or family.

(2):

(n.) A surname.

Bibliography Information
Webster, Noah. Entry for 'Cognomen'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/cognomen.html. 1828.