scoria

English

scoria (sense 2)

Borrowed from Latin scōria, from Ancient Greek σκωρία (skōría), from σκῶρ (skôr, “dung”).

scoria (countable and uncountable, plural scorias or scoriae)

The slag or dross that remains after the smelting of metal from an ore. [from 14th c.]
- 1837, Thomas Carlyle, The French Revolution: A History […], volume (please specify |volume=I to III), London: Chapman and Hall, →OCLC, (please specify the book or page number):
  The like stuff is in Anacharsis: hot metal; full of scoriae, which should and could have been smelted out, but which will not.
(geology) Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater. [from 18th c.]
- 1985, Cormac McCarthy, chapter XVII, in Blood Meridian […] , →OCLC:
  To the south lay broken shapes of scoria in a lava bed as far as the eye could see.
- 2004, Richard Fortey, The Earth, Folio Society, published 2011, page 10:
  An excellent guidebook by Drs Kilburn and McGuire of University College London reveals that these unpromising pieces of debris are scoria and lithic fragments of the March 1944 eruption.

volcanic rock

scoria f (plural scorie)

Borrowed from Ancient Greek σκωρία (skōría, “slag”), from σκῶρ (skôr, “dung”).

scōria f (genitive scōriae); first declension

slag, dross, scoria
- 2^nd century CE, Lex Metalli Vipascensis, in CLI II, 5181, II, 53–55
  Conductori socio actorive eius pignus capere liceto et quod eius scauriae purgatum [lacuna adiectivi unius] expeditum fractum cretum lavatumque erit quive lapides lausiae expeditae in lapicaedinis erunt, commissa ei sunto, nisi quidquid debitum erit conductori socio actorive eius solutum erit.
  The lessee, shareholder, or manager may seize as a pledge what will be cleansed, [lacuna of one adjective], brought forth, broken, shed, and washed of its slags or slabs which will be brought forth in the quarry, they will forfeit to him, if not all will be redeemed that will be owed to the lessee, shareholder, or manager.

“scoria”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
"scoria", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)