Eald-fæder

According to the Old English Dictionary:

eald-fæder

an ancestor; in pl. fathers, forefathers :-- Ealdfædera cnósle auita stirpe, An. Ox. 1600. Þú forðfærst tó þínum ealdfæderum tu ibis ad patres tuos. Gen. 15, 15. Swá hé behét heora ealdfæderum (patribus eorum), Jos. 21, 41. [Hir aldfadir cal I Adam, Met. Hml. 122, 17. O. Sax. ald-fader (Abraham); O.H. Ger. alt-fater (Adam); in pl. the patriarchs.] eald-fæder