n.
Pronunciation: ' gran(d)- ˌ s ī (- ə )r
Function: noun
Etymology: Middle English
Date: 14th century
1 or grand · sir \ ' gran(t)-s ə r \ dialect : GRANDFATHER 1A
2 archaic : FOREFATHER
3 archaic : an aged man
4 : a dam's or sire's sire ― used of an animal