grandsire

[grand-sahyuh r] /ˈgrændˌsaɪər/
noun
1.
a grandfather.
2.
Archaic.
  1. a forefather.
  2. an aged man.
Origin
1250-1300; Middle English graunt-sire < Anglo-French. See grand-, sire
Examples from the web for grandsire
  • Effects fit were sire genotype, maternal grandsire genotype, and interaction of sire genotype with maternal grandsire genotype.
British Dictionary definitions for grandsire

grandsire1

/ˈɡrænˌsaɪə; ˈɡrænd-/
noun
1.
an archaic word for grandfather

grandsire2

/ˈɡrændsə; -ˌsaɪə/
noun
1.
(bell-ringing) a well-established method used in change-ringing See method (sense 4)
Word Origin and History for grandsire
n.

late 13c., from Anglo-French graunt sire; see grand (adj.) + sire (n.).