dross
/dɹɒs/ noun, verb
Forms drosses drossing drossed drosse
- noun Residue that forms as a scum on the surface of molten metal from oxidation.
- noun The impurities in metal.
- noun A waste product from working with metal.
- noun (figurative) Worthless or trivial matter.
- noun (slang) Residual raw opium left in an opium pipe which can be recycled for further sale or use.
- verb (transitive) To remove dross from.
Synonyms
Etymology
From Middle English drosse, dros, from Old English drōs, from Proto-Germanic *drōhs (“dregs, sediment”).
Also compare Old English drōsna, drōsne (“a ground, sediment, lees, dregs, dirt, ear wax”), from Proto-Germanic *drōhsnǭ, *drōhsnō (“dregs, sediment”), derived from *drōhs. Alternatively, this may be from *dragjō + *-snō (“yeast, sediment”; compare *dragjō (“yeast”)), as if from *drēcg + -sn.
Ultimately from Proto-Indo-European *dʰrā́ks (“sediment, yeast”).
Cognate with Scots dros, drose, drosse (“small particles, fragments, dross”), Middle Dutch droes (“dregs”), Dutch droesem (“dregs”), German Drusen (“lees, dregs”), Latin fracēs (“grounds or dregs of oil”). Related also to drast, dregs.
Webster’s 1913
- noun The scum or refuse matter which is thrown off, or falls from, metals in smelting the ore, or in the process of melting; recrement.
- noun Rust of metals. [R.] Addison.
Etymology [AS. dros, fr. dreósan to fall. See Dreary.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “dross”, CC BY-SA 4.0. Details