"It's a colloquial term for the father of a parent. In this case, it was my mother's father," Clark explained, "as he's the one who lives across the fields from us here. My father's parents died before I was born, unfortunately, but this was their farm before it was my father's."

He leaned against one of the wooden support beams.

"If I was talking about his wife, it would be 'grandma'. 'Grandmother' and 'grandfather' are the proper terms, and 'grandparent' is the most general term."