Etymology

anorthoclase

A1N1O1R1T1H4O1C3L1A1S1E1

Today it means: Any of a group of feldspars being mixed sodium and potassium aluminosilicates. Full definition →

English ortho- ← Ancient Greek ἀν- (an-) ← Proto-Hellenic *ə-
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Hellenic*ə-
  4. Ancient Greekᾰ̓- (ă-)
  5. Ancient Greekἀν- (an-)
  6. Englishan-
  7. Englishortho-
  8. English todayanorthoclase

From an- + ortho- + -clase.

Etymology from Wiktionary, CC BY-SA 4.0.