Comparative evidence

su̯enh₂

• Lat. sonō -ere = sonō, -āre ‘to make a noise’, ‘sound’, ‘give utterance’, ‘echo’ (OLD: 1791)

• Lat. sonus -ī, m. ‘sound’, ‘noise’, ‘speech’, ‘utterance’, ‘pronunciation’ (OLD: 1792)

• Lat. sonō -āre ‘to make a noise’, ‘sound’, ‘give utterance’, ‘echo’ (OLD: 1791)

References

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