progenitor

noun

pro·​gen·​i·​tor prō-ˈje-nə-tər 

prə-

1

a

: an ancestor in the direct line : forefather

b

: a biologically ancestral form

2

: precursor, originator

progenitors of socialist ideas

—The Times Literary Supplement (London)

progenitor cells

Synonyms

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

Examples of progenitor in a Sentence

the progenitors of modern art

wild cats that were the progenitors of the house cat

Recent Examples on the Web

One of the oldest progenitors of the style, the eatery was founded by Patsy Lancieri in 1933, and later begat other New York icons like Grimaldi’s and helped spawn a New York pizza renaissance that’s still very much alive. —Rod Stafford Hagwood, Sun Sentinel, 8 Nov. 2024

This is Cliven, the 77-year-old progenitor of the resistance, father of seven sons and seven daughters, grandfather of 74, great-grandfather of 21. —Matt Thompson, SPIN, 5 Nov. 2024

One outstanding question: Is the 2025 affordable Tesla the progenitor of the Cybercab? —Brooke Crothers, Forbes, 27 Oct. 2024

These shows stem from ideological progenitor shows like Last Man Standing, a comedy about a man whose family just can’t (or won’t) live up to his political and cultural expectations. —Kathryn Vanarendonk, Vulture, 26 Sep. 2024

Word History

Etymology

Middle English progenitour, borrowed from Anglo-French & Latin; Anglo-French, borrowed from Latin prōgenitor "individual from whom a person or family is descended, ancestor," agentive derivative of prōgignere "to produce as offspring, bring into being, give rise to" (from prō- pro- entry 2 + gignere "to bring into being, beget, give birth to"), after genitor "father, parent, originator," going back to Indo-European *ǵenh₁- "engender, beget" + *-tor/*-tōr, agent suffix, from which also Greek genétōr "father, begetter, ancestor," Sanskrit janitar-, janitá "father, progenitor" — more at kin entry 1

Note: Alternatively genitor has been explained as a new formation based on genitus, past participle of gignere. The older and still somewhat more attractive view sees genitus as the new formation, based on the perfect genuī or on genitor itself, after the connection with the original verbal adjective (g)nātus (going back to zero-grade *ǵn̥h₁-to-) became weakened.

First Known Use

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

Medical Definition

progenitor

noun

pro·​gen·​i·​tor prō-ˈjen-ət-ər, prə- 

1

: an ancestor of an individual in a direct line of descent along which some or all of the ancestral genes could theoretically have passed

2

: a biologically ancestral form