'psychiatric' originates from Greek, specifically the word 'psychiatrikos,' where 'psyche' meant 'mind' and 'iatros' meant 'healer.'

'psychiatrikos' transformed into the French word 'psychiatrique,' and eventually became the modern English word 'psychiatric' through Middle English.

Initially, it meant 'healing of the mind,' but over time it evolved into its current meaning of 'relating to psychiatry.'