ancestor

noun

an·​ces·​tor ˈan-ˌse-stər 

 also  -sə-

1

a

: one from whom a person is descended and who is usually more remote in the line of descent than a grandparent

Her ancestors came to America in the 1880s.

b

: forefather sense 2

2

: forerunner, prototype

an exhibit of the ancestors of the modern computer

3

: a progenitor (see progenitor sense 1b) of a more recent or existing species or group

the ancestor of the modern horse

Synonyms

• father
• forebear
• forbear
• forebearer
• forefather
• grandfather
• primogenitor
• progenitor

Examples of ancestor in a Sentence

My ancestors came to America during the 1800s.

Her ancestors were great sea captains.

an ancient animal that was the ancestor of the modern horse

The museum included an exhibit showing ancestors of the modern computer.

several languages that are derived from a common ancestor

Latin is the ancestor of Italian and French.

Recent Examples on the Web

Porter County Board of Commissioners President Jim Biggs noted his ancestors were among the first white settlers in the county in 1835, at a settlement a few hundred feet from the site. —Doug Ross, Chicago Tribune, 18 May 2025

Moringa oleifera is native to Indian subcontinent, particularly the Himalayan foothills, while another species, Moringa stenopetala, grows in the Horn of Africa: southern Ethiopia, northern Kenya, and even Somalia, where Elba’s ancestors are from. —India Espy-Jones, Essence, 15 May 2025

Bloomsbury’s intellectual ancestors created a text that Bloomsbury could accept, reject, or misread, but could not ignore. —Jenny Noyce, JSTOR Daily, 14 May 2025

Two-hundred years after the apocalypse, the gentle denizens of luxury fallout shelters are forced to return to the irradiated hellscape their ancestors left behind—and are shocked to discover an incredibly complex, gleefully weird, and highly violent universe waiting for them. —Jeremy Hanna, MSNBC Newsweek, 12 May 2025

Word History

Etymology

Middle English ancestre, from Anglo-French, from Latin antecessor predecessor, from antecedere to go before, from ante- + cedere to go

First Known Use

14th century, in the meaning defined at sense 1a

Phrases Containing ancestor

• ancestor worship

Rhymes for ancestor

• arrester
• digester
• investor
• protester
• requester
• semester
• sequester
• silvester
• trimester
• ester
• esther
• fester

Kids Definition

ancestor

noun

an·​ces·​tor ˈan-ˌses-tər 

1

: one from whom an individual, group, or species is descended

2

: something from which something else has developed : forerunner

Etymology

Middle English ancestre "ancestor," from early French ancestre (same meaning), from Latin antecessor "one that goes before," derived from earlier antecedere "to go before," from ante- "before" and cedere "to go, yield" — related to concede, predecessor

Legal Definition

ancestor

noun

an·​ces·​tor

1

a

: a person from whom an individual is descended : ascendant

b

: a person from whom an estate descends compare heir

2

: one that precedes

ancestor in title