'non-acceptance' originates from the prefix 'non-' meaning 'not' and the word 'acceptance' from Latin 'acceptare,' meaning 'to take or receive.'

'acceptare' transformed into the Old French word 'accepter,' and eventually became the modern English word 'accept' through Middle English.

Initially, it meant 'to take or receive something,' but over time it evolved into its current meaning of 'refusal or failure to accept.'