cognomen

名词 cognomen:

1. a familiar name for a person (often a shortened version of a person's given name)
   同义词：nickname, moniker, sobriquet, soubriquet, byname
2. the name used to identify the members of a family (as distinguished from each member's given name)
   同义词：surname, family name, last name

cog.no.men

n.（名词）
【复数】 cog.no.mens 或 cog.nom.i.na [-nôm.…-n…]

A family name; a surname.
姓：家名；姓
The third and usually last name of a citizen of ancient Rome, asCaesar in Gaius Julius Caesar.
古罗马人的姓：古罗马公民的第三个名字，通常是最后一个名字，如凯撒 在 格尤斯·尤里乌斯·凯撒 中
A name, especially a descriptive nickname or epithet acquired through usage over a period of time.See Synonyms at name
绰号：名，尤指一描述性的绰号或因一段时间的习惯而得的诨名参见 name

来源：
Latin
拉丁语
co- [co-]
co- [前缀，表.相互，一起.]
nômen [name] * see nò-men-
nômen [姓名] *参见 nò-men-

【引伸】
cognom.inal