'energy-waster' originates from the combination of 'energy' and 'waster', where 'energy' refers to the capacity for doing work and 'waster' refers to someone or something that uses resources inefficiently.

'energy-waster' evolved from the need to describe individuals or devices that consume excessive energy, particularly in the context of increasing awareness of energy conservation.

Initially, it referred to any form of waste, but over time it evolved to specifically denote waste related to energy consumption.