soot: [OE] Soot is etymologically that which ‘sits’ on something – that is, a film which settles on a surface. The word comes from a prehistoric Germanic *sōtam, which was descended from the Indo-European base *sōd-, *sed- ‘sit’ (source also of English settle, sit, etc). By the time it reached English it had become specialized in meaning to the ‘fine black particles produced by burning’. => settle, sit
soot (n.)
Old English sot "soot," from Proto-Germanic *sotam "soot" (cognates: Old Norse sot, Old Dutch soet, North Frisian sutt), literally "what settles," from PIE *sod-o- (cognates: Old Church Slavonic sažda, Lithuanian suodžiai, Old Irish suide, Breton huzel "soot"), suffixed form of root *sed- (1) "to sit" (see sedentary).
实用例句
1. Their faces were blackened with soot.
他们满脸煤灰。
来自《权威词典》
2. Soot is the product of the imperfect combustion of fuel.
煤烟是燃料不完全燃烧的产物.
来自《简明英汉词典》
3. Soot is usually the product of the imperfect combustion of fuel.
煤烟通常是燃料不完全燃烧的产物.
来自《简明英汉词典》
4. The inside of a chimney soon gets covered in soot.
