patchouli (n.)youdaoicibaDictYouDict[patchouli 词源字典]
perfume made from an Indian plant of the mint family, 1845, from the native name for the plant in Madras, said to be from Tamil pachchai "green" + ilai "leaf." The form of the word appears French, but this has not been explained and the record of it in English predates that in French.[patchouli etymology, patchouli origin, 英语词源]