'credit-expanding' originates from the combination of 'credit' and 'expand,' where 'credit' refers to the provision of money or resources and 'expand' means to increase in size or volume.

'credit' and 'expand' have been used in English since the late Middle Ages, with 'credit' deriving from Latin 'creditum' and 'expand' from Latin 'expandere.'

Initially, 'credit' meant 'trust or belief,' and 'expand' meant 'to spread out.' Over time, 'credit-expanding' evolved to mean increasing the availability of financial resources.