Etymology

siltstone

S1I1L1T1S1T1O1N1E1

Today it means: A sedimentary rock whose composition is intermediate in grain size between the coarser sandstone and the finer mudstone. Full definition →

English stone ← Middle English ston ← Old English stān
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The story

  1. Englishsilt
  2. Proto-Indo-European*steh₂-
  3. Proto-Indo-European*steyh₂-
  4. Proto-Indo-European*stóyh₂nos
  5. Proto-Germanic*stainaz
  6. Proto-West Germanic*stain
  7. Old Englishstān
  8. Middle Englishston
  9. Englishstone
  10. English todaysiltstone

From silt + stone.

Etymology from Wiktionary, CC BY-SA 4.0.