'entitle' originates from Old French, specifically the word 'entiteler,' where 'en-' meant 'in' and 'titre' meant 'title.'

'entiteler' transformed into the Middle English word 'entitlen,' and eventually became the modern English word 'entitle'.

Initially, it meant 'to give a title to,' but over time it evolved into its current meaning of 'to give someone the right to do or have something.'