Irish athair

← Proto-Celtic *ɸatīr (inherited)

← Irish (link)

← Irish (link)

← Irish (link)

← Irish aithre (link)

← Irish aithreach (link)

← Irish aithribh (link)

← Irish aithreachaibh (link)

← Irish iníon (link)

← Irish máthair (link)

← Irish mac (link)

← Irish athair thalún (link)

← Proto-Indo-European *ph₂tḗr (inherited)

← Old Irish athair (inherited)

→ Irish seanathair (affix)

→ Irish leasathair (affix)

→ Irish garathair (prefix)

→ Irish aithriúil (affix)

→ Irish ardathair (affix)

→ Yola vather (cognate)