Etymology

arachnophobia

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Today it means: An abnormal or irrational fear of arachnids, especially spiders. Full definition →

Ancient Greek φόβος (phóbos) ← Proto-Hellenic *pʰógʷos ← Proto-Indo-European *bʰógʷos
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The story

  1. Englisharachno-
  2. Proto-Indo-European*bʰógʷos
  3. Proto-Hellenic*pʰógʷos
  4. Ancient Greekφόβος (phóbos)
  5. English todayarachnophobia

From arachno- + -phobia, from Ancient Greek ἀράχνη (arákhnē, “spider”) + φόβος (phóbos, “fear”). Piecewise doublet of araneophobia.

Words from the same roots

Ancient Greekἀράχνη all →

Arachnearachnidarachno-

Etymology from Wiktionary, CC BY-SA 4.0.