ˈgranˌdam, -_dəm noun
( -s )
Etymology: Middle English graundam, from Old French grant dame, from grant grand + dame lady, mother
1. or gran·dame -ˌdām, -_dəm
a. : grandmother
b. : old woman
2. also grand·dam -nˌdamˌ -ndəm : a dam's or sire's dam — used of an animal