progenitor
Americannoun
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progenitors
plural
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a biologically related ancestor.
a progenitor of the species.
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a person or thing that first indicates a direction, originates something, or serves as a model; predecessor; precursor.
the progenitor of modern painting.
noun
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a direct ancestor
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an originator or founder of a future development; precursor
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of progenitor
1350–1400; Middle English < Latin prōgenitor the founder of a family. See pro- 1, genitor
Explanation
While any ancestor can be a progenitor, or previous member of a family line, the word is usually applied to someone who was an originator of or major contributor to the characteristics of that line. The word progenitor can be traced to the Latin prōgignere, which means "to beget," and so is linked to the beginning of a genealogical line. The clue comes in the "gen" part, meaning "birth, procreation," and signifying the genetic contribution of an ancestor to a family line. Prō- means "forward," and the -tor suffix indicates someone doing an action — so a progenitor is someone who gives rise to a family line.
Vocabulary lists containing progenitor
It's All in the Family
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We the People: Gen
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Silent Spring
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
“Jamie taught me what a best friend was,” said second baseman Richie Greenberg, another Feeney progenitor.
From Los Angeles Times ● Jun. 26, 2026
He could be the progenitor of a new look, a Christian Dior for the modern woman.
From Salon ● Mar. 27, 2026
But the progenitor of the modern videogame is widely considered to be Steve Russell’s “Spacewar,” designed in 1961 as an exercise in computer programming when Russell was a student at the Massachusetts Institute of Technology.
From The Wall Street Journal ● Feb. 9, 2026
These changes indicate a broad return to a more youthful cartilage profile without involving stem or progenitor cells.
From Science Daily ● Jan. 20, 2026
It makes the progenitor of all this group of insecticides, DDT, seem by comparison almost harmless.
From "Silent Spring" by Rachel Carson
Those animals were the progenitors of the vast Native American pony herds of later centuries.
From The Wall Street Journal ● Apr. 28, 2026
As pop evolves, so have the progenitors of its modern sound.
From Salon ● Jan. 10, 2026
Its progenitors - who now can generate videos of literally anything in just a few minutes - have the potential to disrupt the lucrative influencer economy.
From BBC ● Dec. 26, 2025
There are nods to traditional Korean folk painting, a Korean guide to the afterlife, the progenitors of K-pop and everyday mannerisms.
From Los Angeles Times ● Aug. 2, 2025
Many of these late-stage fruit trees posed a further problem in that their wild progenitors were the opposite of self-pollinating.
From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
