'demotivatingly' originates from the English word 'demotivate,' which is a combination of the prefix 'de-' meaning 'remove' and 'motivate' meaning 'to provide with a reason to act.'

'demotivate' changed from the English word 'motivate' with the addition of the prefix 'de-' to indicate removal or reversal, eventually forming 'demotivate.'

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