Old Irish art

← Proto-Celtic *artos (inherited)

← Welsh arth (cognate)

← Proto-Indo-European *h₂ŕ̥tḱos (inherited)

← Cornish arth (cognate)

→ English Hartigan (mention)

→ Gaulish artua (cognate)

→ Irish art (inherited)

→ Manx Art (inherited)