grand·​sire ˈgran(d)-ˌsī(-ə)r How to pronounce grandsire (audio)
or grandsir dialect : grandfather sense 1a
archaic : forefather
archaic : an aged man
: a dam's or sire's sire
used of an animal

Examples of grandsire in a Sentence

Recent Examples on the Web He was renamed Honor A.P. as a tribute to his grandsire, A.P. Indy, who died in February at the age of 30. Jason Frakes, The Courier-Journal, 2 Sep. 2020 Writhing in pain, Rhaenyra tells her boys that their grandsire has died and Aegon has been crowned king. Erica Gonzales, ELLE, 23 Oct. 2022 With 1977 Triple Crown winner Seattle Slew and 1992 Belmont winner A.P. Indy part of his pedigree, Tapit also is the grandsire of last year’s shorter Belmont winner, Tiz the Law. Mark Inabinett |, al, 5 June 2021 Sir Winston joined his dam sire, Afleet Alex, and one of his great-grandsires Affirmed as winners of the Belmont Stakes. Mark Inabinett |,, 8 June 2019 Sir Winston's maternal grandsire is 2005 Belmont winner Afleet Alex. John Cherwa,, 7 June 2019 His great grandsire is Seattle Slew, a Triple Crown winner in 1977. Neil Greenberg,, 1 May 2018 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'grandsire.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Middle English

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of grandsire was in the 14th century

Dictionary Entries Near grandsire

Cite this Entry

“Grandsire.” Dictionary, Merriam-Webster, Accessed 4 Mar. 2024.

Kids Definition


grand·​sire ˈgran(d)-ˌsī(ə)r How to pronounce grandsire (audio)
or grandsir dialect : grandfather sense 1
archaic : an aged man

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