isänisänisä
Isänisänisä is a Finnish term referring to one's paternal great-grandfather. It is a specific genealogical term used to identify a person's ancestor who is two generations removed from their grandfather on their father's side. The term is a compound word, with "isä" meaning father, "isän" being the genitive case of father, indicating possession or lineage, and "isänisä" meaning paternal grandfather. Therefore, "isänisänisä" literally translates to "father's father's father". This term is crucial in tracing family trees and understanding ancestral lines within Finnish genealogy. It signifies a direct male-line ancestor, connecting an individual to their family's history.