pyrethrumyoudaoicibaDictYouDict[pyrethrum 词源字典]
"An aromatic plant of the daisy family, typically having feathery foliage and brightly coloured flowers", Middle English (denoting pellitory): from Latin, from Greek purethron 'feverfew'. The current senses (based on the former genus name) date from the late 19th century.[pyrethrum etymology, pyrethrum origin, 英语词源]