grandsire
Americannoun
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a grandfather.
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Archaic.
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a forefather.
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an aged man.
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noun
noun
Etymology
Origin of grandsire
1250–1300; Middle English graunt-sire < Anglo-French. See grand-, sire
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.
Like COVID, unless you were there, it’s hard to believe the things that went on, but if you’re skeptical about what old grandsire tells you about the Great Gas Wars of the 1970s, believe him.
From Los Angeles Times ● Mar. 18, 2026
Indy is also the grandsire of the aforementioned Tapit.
From Washington Post ● Jun. 9, 2022
Louisiana is my literary grandsire, the source of the content and dialect of my early stories.
From New York Times ● Aug. 3, 2015
Then I said to myself, "My Mary weeps For the dead to-day:Haply her blind old grandsire sleeps The fret and the pain of his age away."
From The Guardian ● Jun. 11, 2012
‘Forlong has come,’ Bergil answered; ‘old Forlong the Fat, the Lord of Lossarnach. That is where my grandsire lives. Hurrah! Here he is. Good old Forlong!’
From "The Return of the King" by J.R.R. Tolkien
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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.