Belsire
Pronunciation : Bel"sire`
Part of Speech : n.
Etymology : [Pref. bel- + sire. Cf. Beldam.]
Definition : Defn: A grandfather, or ancestor. "His great belsire Brute." [Obs.] Drayton.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder