'schematic' originates from Greek, specifically the word 'schēmatikos,' where 'schēma' meant 'form' or 'figure.'

'schēmatikos' transformed into the Latin word 'schematicus,' and eventually became the modern English word 'schematic.'

Initially, it meant 'pertaining to a form or figure,' but over time it evolved into its current meaning of 'relating to a diagram or outline.'