forefather
Forefather (noun) means a member of your family who lived a long time before you.
Etymology
Came from Middle English forefader, forfader, vorvader, from Old English forefæder (“forefather”), though it may also have merged with Old Norse forfaðir; it is equivalent to fore- + father. Compare Dutch voorvader (“forefather”), German Vorvater, Vorfahr (“forefather”), Danish forfader (“forefather”) and Swedish förfader (“forefather”).