Added 9 October 2026 auncestour noun noun ! Definition from Wiktionary (CC BY-SA). More about auncestour at Wordnik → Where our words come from → Obsolete form of ancestor. Related Words: auncestorancestourauncestrieprogenitourancestrieauncestryenheritourantecessourheritourinheritourparentprogeny Back to today's word