Comparative evidence

h₂erh₃

• Lat. arō -āre ‘to cultivate by ploughing’, ‘plough’, to produce by ploughing or cultvation’, ‘grow’, ’to furrow’, ‘wrinkle’ (OLD: 173)

• Lat. arātrum -ī, n. ‘a plough’ (OLD: 159)

References

OLD = Glare, P. G. W. 1968. Oxford Latin Dictionary. Oxford: Clarendon Press.