'superficial' originates from Latin, specifically the word 'superficialis,' where 'super-' meant 'above' and 'facies' meant 'face or surface.'

'superficialis' transformed into the Old French word 'superficiel,' and eventually became the modern English word 'superficial' through Middle English.

Initially, it meant 'pertaining to the surface,' but over time it evolved into its current meaning of 'lacking depth or thoroughness.'