'low-energy' originates from the combination of 'low,' meaning 'not high or tall,' and 'energy,' from Greek 'energeia,' meaning 'activity or operation.'

'low-energy' evolved from the concept of 'low' and 'energy' being used together to describe something that requires minimal power or effort.

Initially, it meant 'requiring minimal power,' but over time it evolved to describe anything that lacks vigor or dynamism.