'inadvertently' originates from Latin, specifically the word 'inadvertentem,' where 'in-' meant 'not' and 'advertentem' meant 'turning the mind to.' 'Accepted' comes from Latin 'acceptare,' meaning 'to take or receive.'

'inadvertentem' transformed into the French word 'inadvertent,' and eventually became the modern English word 'inadvertent.' 'Acceptare' evolved into the Old French 'accepter,' and eventually became the modern English word 'accept.'

Initially, 'inadvertent' meant 'not turning the mind to,' but over time it evolved into its current meaning of 'unintentional.' 'Accept' has largely retained its original meaning of 'to receive or take.'