1) Male ancestor 1) Veteran 
Grandsire is one of the standard change ringing methods, which are methods of ringing church bells or handbells using a series of mathematical permutations rather than using a melody. The Grandsire method is usually rung on an odd number of bells: Grandsire Doubles is rung on five working bells, Grandsire Triples on seven, Grandsire Caters on nine...
• (n.) Specifically, a grandfather; more generally, any ancestor.
Grand'sire' noun [ Old French grantsire . See Grand , and Sire .] Specifically, a grandfather; more generally, any ancestor.