Scoria
/ˈskɔːriə/noun
Rough, porous volcanic rock formed from gas bubbles in lava.
Did you know?In Latin, scoria meant not just volcanic cinders but also metal slag, linking the word to the ancient world of furnaces, fire, and transformation.
Etymological Timeline
Ancient Greek
Greek
σκωρία (skōría)
“dross, refuse, or slag”
Classical Latin
Latin
scoria
“slag, cinders, refuse from smelting”
Late Latin
Latin
scoria
“volcanic ash or cinder-like rock”
Late Middle English
English
scorie
“slag or cinder-like waste”
Modern English
English
scoria
“porous volcanic rock”