'prosthetic' originates from Greek, specifically the word 'prosthesis,' where 'pros-' meant 'in addition to' and 'thesis' meant 'placing.'

'prosthesis' transformed into the Latin word 'prosthesis,' and eventually became the modern English word 'prosthetic' through Middle English.

Initially, it meant 'addition or attachment,' but over time it evolved into its current meaning of 'relating to artificial body parts.'