'authorization' originates from Latin, specifically the word 'auctorizare,' where 'auctor' meant 'author' or 'originator.' 'Required' comes from Latin 'requirere,' meaning 'to seek or ask for.'

'authorization' changed from the Old French word 'auctorisation' and eventually became the modern English word 'authorization.' 'Required' evolved from the Old French 'requerre' to the modern English 'require.'

Initially, 'authorization' meant 'the act of giving authority,' and 'required' meant 'needed or necessary.' These meanings have largely remained the same in modern usage.