英语词汇toothache tree的起源、历史背景-英语词源词典

词汇	toothache tree
词源	toothache tree. American pioneers called the prickly ash (Zanthophylum americanum) the toothache tree or toothache bush, because the white-spined ash-leafed tree’s fruit has pun- gent properties when applied to an aching tooth. The term is first recorded early in the 19th century.
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英语词源词典收录了13259条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。