The story
- Ancient Greek · derived fromῥῆγος“rug, blanket”
- English todayregolith
Irregular formation from Ancient Greek ῥῆγος (rhêgos, “rug, blanket”) + -lith (from λίθος (líthos, “stone”)).
Etymology from Wiktionary, CC BY-SA 4.0.
regolith
Today it means: The layer of loose rock, dust, sand, and soil, resting on the bedrock, that constitutes the surface layer of most dry land on Earth, the Moon, and other large solid aggregated celestial objects. Submarine regolith also exists. Full definition →
Ancient Greek ῥῆγος