'cost-reducing' originates from the combination of 'cost' and 'reduce,' where 'cost' refers to the amount of money required for something, and 'reduce' means to make something smaller or less in amount.

'Cost-reducing' evolved from the need to describe actions that lower expenses, combining 'cost' and 'reduce' into a single adjective form.

Initially, it meant 'to lower expenses,' and this meaning has remained consistent in modern usage.