'investiture' originates from Latin, specifically the word 'investitura,' where 'in-' meant 'into' and 'vestire' meant 'to clothe.'

'investitura' transformed into the Old French word 'investiture,' and eventually became the modern English word 'investiture' through Middle English.

Initially, it meant 'to clothe or dress someone,' but over time it evolved into its current meaning of 'formal ceremony of conferring authority.'