blacking
n.
"thing which makes (something else) black," 1570s; as "action of making black," c.1600, verbal noun from black, v..
| 词汇 | blacking | 
| 词根词缀 | Online Etymology Dictionary blacking n. "thing which makes (something else) black," 1570s; as "action of making black," c.1600, verbal noun from black, v.. | 
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