'commendatory' originates from Latin, specifically the word 'commendatorius,' where 'commendare' meant 'to entrust or praise.'

'commendatorius' transformed into the Old French word 'commendatoire,' and eventually became the modern English word 'commendatory' through Middle English.

Initially, it meant 'to entrust or praise,' but over time it evolved into its current meaning of 'expressing praise or approval.'