vervain
n.
herbaceous plant much valued medicinally in Middle Ages, late 14c., from Old French verveine (13c.), from Latin verbena (see verbena).
| 词汇 | vervain | 
| 词根词缀 | Online Etymology Dictionary vervain n. herbaceous plant much valued medicinally in Middle Ages, late 14c., from Old French verveine (13c.), from Latin verbena (see verbena). | 
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