Definition of grandsire in US English:

grandsire

noun

  • archaic term for grandfather
    • ‘‘Cuvee inherited his great speed from his sire, Carson City, and his grandsire, Mr. Prospector,’ Beck said.’
    • ‘It never occurred to me that you might not realize he was your father or grandfather, or great grandsire or whatever.’
    • ‘‘Then you would know your great grandsires,’ he murmured in an awed voice.’
    • ‘It was a little while after the boy's granddam and grandsire had resigned, and Greni had returned with more grumbling, but looking considerably lighter of mood, that Naoise had noted the boy's inquisitive stares.’
    • ‘To me, you are as loved as my grandsire; not blindly feared and obeyed.’

Pronunciation

grandsire

/ˈɡrændˌsaɪ(ə)r//ˈɡrandˌsī(ə)r/