Etymology

supercool

su·per·cool
S1U1P3E1R1C3O1O1L1

Today it means: To cool a material below its transition temperature without that transition occurring. Full definition →

English cool ← Latin super- ← Proto-Italic *super
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The story

  1. Proto-Indo-European*úp
  2. Proto-Indo-European*upér
  3. Proto-Italic*super
  4. Latinsuper
  5. Latinsuper-
  6. Englishsuper-
  7. Englishcool
  8. English todaysupercool

From super- + cool.

Etymology from Wiktionary, CC BY-SA 4.0.