Where does “undercool” come from?

undercool (English) comes from English cool, from Middle English cool, from Middle English pek, from Middle English pike, from Old English pīc, from Proto-Germanic *pīk, from Latin pix, from Proto-Indo-European pik- — sap, juice.

undercool (English): To cool insufficiently; To supercool

Definitions

  1. To cool insufficiently; To supercool

Ancestry of “undercool”, step by step

undercool traces back through two separate lines of ancestry.

via English cool

StepLanguageWordMeaning
1EnglishcoolHaving a slightly low temperature; mildly or...
2Middle Englishcool
3Middle Englishpekpeak
4Middle EnglishpikeAlternative form of pyke; pike; sharp point, iron...
5Old Englishpīcpointed object, pick axe
6Proto-Germanic*pīk
7Latinpixpitch, tar
8Proto-Indo-Europeanpik-to be angry; pitch; resin
9Proto-Indo-Europeanpi-sap, juice

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside
Every word from Proto-Indo-European pi-