Grandfather (noun)

1. The father of one's parent.
2. A fatherly or senior figure; an elder.

Origin:

From middle english grandfader, grandefader, from grand ("great, older") + father.

Examples:

1. My grandfather was a kind and loving man.
2. He was always ready to offer advice and guidance, like a true grandfather should.
3. We visited my grandfather's house every weekend when I was a child.
4. I often think of my grandfather when I see old photographs.
5. My grandfather was a great storyteller and I have fond memories of listening to his tales.