cool

UK: kuːl | US: kuːl

Definition

  1. adj. moderately cold; low in temperature but not freezing

  2. adj. calm and unemotional

  3. adj. (slang) fashionable or impressive

  4. v. to make or become less warm

  5. v. to reduce in intensity or excitement

Structure
co <together>ol <old>
Etymology

The word "cool" originates from Old English cōl, meaning "moderately cold," derived from Proto-Germanic kōlaz. It shares roots with Old High German kuoli and Old Norse kala ("to freeze"). Over time, its meaning expanded metaphorically to describe emotional detachment (14th century) and later, in 20th-century slang, social approval or style. The modern sense of "fashionable" emerged in jazz culture (1930s), reflecting a relaxed, confident attitude.

Examples

  1. The evening breeze felt cool against her skin.

  2. He remained cool under pressure during the interview.

  3. Those sunglasses look really cool on you.

  4. Let the soup cool before serving.

  5. Her sarcastic remark cooled the enthusiasm in the room.