'herb' originates from Latin, specifically the word 'herba', where 'herba' meant 'grass' or 'green plant'.

'herb' changed from Old French word 'herbe' and Middle English 'herbe' and eventually became the modern English word 'herb'.

Initially it meant 'grass' or 'green plant', but over time it evolved into its current meaning of 'a plant valued for its flavor, scent, or medicinal properties'.