English
Jefferson
From Jeffrey + -son.
Formed from Jeffrey + -son
The story
The placenames in the United States are named for Thomas Jefferson.
Today it means
name An English surname originating as a patronymic; (US politics) used specifically of Thomas Jefferson (1743–1826), the third president of the United States, principal author of the US Declaration of Independence (1776), and one of the most influential founders of the United States.
Language periods are conventional ranges, not dates for this word.
Etymograph / Jefferson