an aromatic plant of the daisy family, formerly used in medicine and for flavouring ale prior to the use of hops 艾菊。 亦称 alecost
Balsamita major, family Compositae 拉丁名 Balsamita major,菊科
语源
late Middle English: from obsolete cost (via Latin from Greek kostos, via Arabic from Sanskrit kustha, denoting an aromatic plant) + Mary, the mother of Christ (with whom it was associated in medieval times because of its medicinal qualities)