Welsh oes

← Proto-Brythonic *oɨs (derived)

← Proto-Celtic *aiwestom (derived)

← Welsh oed (cognate)

← Welsh ers oes oesoedd (link)

← Welsh goroesi (link)

← Welsh yr Oesoedd Canol (link)

← Welsh yn oes oesoedd (link)

← Proto-Indo-European *h₂ey- (derived)

← Latin aevus (cognate)

← Old Welsh ois (inherited)

→ Welsh cyfoes (prefix)

→ Welsh sgen (compound)

→ Welsh sgan (compound)

→ Welsh sgynnoch (compound)

→ Welsh sgynno (compound)

→ Welsh sgynni (compound)

→ Welsh sgynnyn (compound)

→ Welsh sgynnon (compound)