'amyotrophy' originates from Greek, specifically the word 'amyotrophia,' where 'a-' meant 'without,' 'myo-' referred to 'muscle,' and 'trophia' meant 'nourishment.'

'amyotrophia' transformed into the modern English word 'amyotrophy' through medical terminology.

Initially, it meant 'lack of muscle nourishment,' and this meaning has largely remained the same in modern usage.