'cardiographic' originates from Greek, specifically the root 'kardia' and the combining form ' -graph' from 'graphein', where 'kardia' meant 'heart' and 'graphein' meant 'to write/record'.

'cardiographic' changed from New Latin/Modern formation combining 'cardio-' (from Greek 'kardia') + 'graph' (from Greek 'graphein') and the adjectival suffix '-ic', producing the English adjective 'cardiographic'.

Initially, its components meant 'heart' and 'to write/record', and over time the combined form came to mean 'pertaining to recordings or graphical representations of the heart'; this core meaning has remained largely consistent.