Etymology

suprachiasmatic

S1U1P3R1A1C3H4I1A1S1M3A1T1I1C3

Today it means: Situated above the optic chiasm; specifically, designating a nucleus or region in the paraventricular region of the hypothalamus. Full definition →

First used 20th c.English chiasmatic ← New Latin chiasma ← Ancient Greek χῑ́ασμα (khī́asma)
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Proto-Indo-European*úp
  2. Proto-Indo-European*upér
  3. Proto-Italic*super
  4. Proto-Italic*superos
  5. Proto-Italic*superād
  6. Old Latinsuprād
  7. Latinsuprā
  8. Latinsupra-
  9. Englishsupra-
  10. Ancient Greekχῖ (khî)
  11. Ancient Greekχῑᾰ́ζω (khīắzō)
  12. Ancient Greekχῑ́ασμα (khī́asma)
  13. New Latinchiasma
  14. Englishchiasma
  15. Englishchiasmatic
  16. English todaysuprachiasmatic

From supra- + chiasmatic.

First known use, by meaning

  • from 20th c. Situated above the optic chiasm; specifically, designating a nucleus or region in the paraventricular region of the hypothalamus.

Etymology from Wiktionary, CC BY-SA 4.0.