Etymology

sigma

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Today it means: The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient. Full definition →

Ancient Greek σῖγμα
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The story

  1. Ancient Greek · derived fromσῖγμα
  2. English todaysigma

From Ancient Greek σῖγμα (sîgma), probably from the root σῑγ- (sīg-) as seen in σίζω (sízō, “to hiss”) + -μα (-ma, nominal suffix).

Words from the same roots

Ancient Greekσῖγμα all →

sigmodont

Etymology from Wiktionary, CC BY-SA 4.0.