simatic

• a word derived from sima.
  sima

  noun

  an assemblage of rocks, rich in silica and magnesium, that constitutes the lower layer of the earth's crust and is found beneath the ocean floors and the sial of continents.

More Suggestions

• somatic
• simpatico
• stigmatic
• animatic
• climatic
• stomatic
• comatic
• hematic
• nematic