Noun
paternal grandfather (plural paternal grandfathers)
Used other than figuratively or idiomatically: see paternal, grandfather. (This entry is a translation hub.)
Coordinate terms: paternal grandmother, maternal grandfather, maternal grandmother
In my case, a papadaddy is a father. My paternal grandfather was called Papa by my father who was called Daddy by me. Clyde Edgerton
My paternal grandfather Rustom Mehta had a huge influence on me because of his ethics and his values. Zarin Mehta