From Middle English erbe, borrowed from Old French erbe (French herbe), from Latin herba. Initial h was restored to the spelling in the 15th century on the basis on Latin, but it remained mute until the 19th century and still is for many speakers.
herb (countable and uncountable, plural herbs)
- (countable) Any green, leafy plant, or parts thereof, used to flavour or season food.
- (countable) A plant whose roots, leaves or seeds, etc. are used in medicine.
- (uncountable, slang, euphemistic) Marijuana.
- (countable, botany) A plant whose stem is not woody and does not persist beyond each growing season
- (uncountable, obsolete) Grass; herbage.