'benefic' originates from Latin, specifically the word 'beneficus', where 'bene' meant 'well' and 'facere' meant 'to do'.

'benefic' changed from the Medieval Latin/Old French word 'beneficus' and entered Middle English, eventually becoming the modern English word 'benefic'.

Initially, it meant 'doing or producing good', but over time it evolved into its current usage meaning 'favorable' or 'beneficial', often retained in literary or astrological contexts.