Etymology

calcitonin

C3A1L1C3I1T1O1N1I1N1

Today it means: A polypeptide hormone secreted by the thyroid gland that has the effect of lowering blood calcium. Full definition →

English tonic ← Ancient Greek τονῐκός (tonĭkós) ← Proto-Hellenic *tónos
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The story

  1. Ancient Greekχᾰ́λῐξ (khắlĭx)bor.?
  2. Latincalx
  3. Englishcalcium
  4. Englishcalci-
  5. Proto-Indo-European*ten-
  6. Proto-Indo-European*tónos
  7. Proto-Hellenic*tónos
  8. Ancient Greekτόνος (tónos)
  9. Ancient Greekτονῐκός (tonĭkós)
  10. Englishtonic
  11. English todaycalcitonin

From calci- + tonic + -in.

Etymology from Wiktionary, CC BY-SA 4.0.