'accommodativeness' originates from the Latin word 'accommodare,' where 'ad-' meant 'to' and 'commodare' meant 'make fit.'

'accommodare' transformed into the French word 'accommoder,' and eventually became the modern English word 'accommodate,' from which 'accommodativeness' is derived.

Initially, it meant 'to make fit or suitable,' but over time it evolved into its current meaning of 'the quality of being accommodating.'