touchstone的词源

英文词源

touchstone (n.)

late 15c., from touch (v.) in the Middle English sense "to test" (metal) + stone (n.). Fine-grained black quartz, used for testing the quality of gold and silver alloys by the color of the streak made by rubbing them on it. Also see basalt. Figurative sense is from 1530s.

中文词源

touchstone：试金石

touch,触碰，触摸，引申词义检验，stone,石头。用于指试金石。

该词的英语词源请访问找单词词源英文版：touchstone 词源，touchstone 含义。

touchstone：试金石

touch,触碰，触摸，引申词义检验，stone,石头。用于指试金石。