hallmark
n.
1721, official stamp of purity in gold and silver articles, from Goldsmiths' Hall in London, site of the assay office; see hall + mark, n.1. General sense of "mark of quality" first recorded 1864. As a verb from 1773.
| 词汇 | hallmark |
| 词根词缀 | Online Etymology Dictionary hallmark n. 1721, official stamp of purity in gold and silver articles, from Goldsmiths' Hall in London, site of the assay office; see hall + mark, n.1. General sense of "mark of quality" first recorded 1864. As a verb from 1773. |
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