'detune' originates from the prefix 'de-' meaning 'reverse' or 'remove' and the word 'tune' from Old English 'tune,' meaning 'a musical sound.'

'detune' changed from the Old English word 'tune' and eventually became the modern English word 'detune' by adding the prefix 'de-' to indicate reversal.

Initially, it meant 'to remove or alter the tuning,' and this meaning has largely remained the same in modern usage.