'sedimentary' originates from the Latin word 'sedimentum,' where 'sedimentum' meant 'a settling or sinking down.'

'sedimentum' transformed into the French word 'sédimentaire,' and eventually became the modern English word 'sedimentary' through Middle English.

Initially, it meant 'a settling or sinking down,' but over time it evolved into its current meaning of 'relating to or formed from sediment.'