| 词汇 | tumbler |
| 词根词缀 | 词源： mid-14c., "acrobat," from tumble (v.). A fem. form was tumbester (late 14c.). Meaning "drinking glass" is recorded from 1660s, originally a glass with a rounded or pointed bottom which would cause it to "tumble," and thus it could not be set down until it was empty. |
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