'inadvertently-refused' is a compound word combining 'inadvertently' and 'refused'. 'Inadvertently' originates from Latin, specifically the word 'inadvertentem', where 'in-' meant 'not' and 'advertentem' meant 'turning the mind to'. 'Refused' comes from Latin 'refusare', meaning 'to reject'.

'inadvertently' changed from the Latin 'inadvertentem' to the Old French 'inadvertant', and eventually became the modern English word 'inadvertently'. 'Refused' evolved from the Latin 'refusare' to the Old French 'refuser', and eventually became the modern English word 'refuse'.

Initially, 'inadvertently' meant 'not turning the mind to', but over time it evolved into its current meaning of 'unintentionally'. 'Refused' has largely retained its original meaning of 'to reject'.