Etymology

pseudovector

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Today it means: A quantity that transforms like a vector under a proper rotation but gains an additional change of sign under an improper rotation Full definition →

English vector ← Latin vector ← Proto-Italic *weɣō
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The story

  1. Ancient Greekψεύδω (pseúdō)
  2. Ancient Greekψευδής (pseudḗs)
  3. Middle Englishpseudo-
  4. Englishpseudo-
  5. Proto-Indo-European*weǵʰ-
  6. Proto-Indo-European*wéǵʰeti
  7. Proto-Italic*weɣō
  8. Latinvehō
  9. Latinvector
  10. Englishvector
  11. English todaypseudovector

From pseudo- + vector.

Etymology from Wiktionary, CC BY-SA 4.0.