Lingaku- (coll.) father's father's mother
- paternal great-grandmother
- respectful form of address for an old woman
Generated: This refers to the paternal great-grandmother, a family relationship indicating a woman who is the mother of one's grandfather on the father's side.
My paternal great-grandmother is already ninety years old this year.
Generated: This usage expresses respect and affection when addressing an elderly woman, regardless of family ties.