First Known Use: 14th century
Dictionary
grandsire
noun grand·sire \ˈgran(d)-ˌsī(-ə)r\
Definition of GRANDSIRE
1
or grand·sir \ˈgran(t)-sər\ dial : grandfather 1a
2
archaic : forefather
3
archaic : an aged man
4
: a dam's or sire's sire —used of an animal
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Origin of GRANDSIRE
Middle English
Rhymes with GRANDSIRE
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