cool

Reading level: medium

Estimated CEFR level: B1 — Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun the quality of being at a refreshingly low temperature
  2. noun great coolness and composure under strain
  3. verb make cool or cooler

Etymology

From Middle English cool, from Old English cōl (“cool, cold, tranquil, calm”), from Proto-West Germanic *kōl(ī), from Proto-Germanic *kōlaz, *kōluz (“cool”), from *kalaną (“to be cold, to freeze”), Proto-Indo-European *gel- (“to be cold, to freeze”). Cognates Cognate with North Frisian kuul, kölj (“cold”), Saterland Frisian köil (“cool”), West Frisian koel (“cool”), Cimbrian khuul (“chilly, cool”), Dutch koel (“cool”), German kühl (“cool”), Low German köhl (“cool”), Luxembourgish kill (“cool”), Vilamovian kił (“cool”); also Latin gelū, gelum, gelus (“frost; chill, cold”), Belarusian хо́лад (xólad, “cold”), Bulgarian хлад (hlad, “chill, coolness”), Czech chlad (“cold”), Macedonian лад (lad, “shade; coolness”), Polish chłód (“cold”), Russian and Ukrainian хо́лод (xólod, “cold”), Serbo-Croatian хла̑д, hlȃd (“shade”), Sanskrit जड (jaḍa, “cold; stiff”), जल (jala, “water”). Related to cold.

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