primogenitor Synonyms

progenitor earliest ancestor source sire root prototype founder procreator predecessor precursor patriarch creator forebearer earlier ancestor common forebear biological ancestor aforementioned ancestor family predecessor eldest child of the family eldest child in the family elder children antecedents forebears parent originator origin begetter base author ascendent ascendant antecessor antecedent ancestry ancestress cause elder father lineage grandsire grandfather genealogy forerunner foregoer forefather forebear forbear ancestor