'anoint' originates from Old French, specifically the word 'anoindre,' ultimately from Latin 'unguere,' where 'unguere' meant 'to anoint or smear with oil.'

'anoint' changed from Old French 'anoindre' into Middle English forms such as 'anointen' and eventually became the modern English word 'anoint.'

Initially it meant 'to smear with oil' (literally for medicinal or ritual use), but over time it also acquired the additional meaning 'to consecrate or choose (someone) for a role,' which is common in modern usage.