차가운 물.

The phrase '차가운 물' (chagaun mul) is a combination of two Korean words: '차갑다' (chagapda), meaning 'to be cold,' and '물' (mul), meaning 'water.' The word '차갑다' (chagapda) is an adjective in Korean. Its etymology can be traced back to Old Korean. The '차-' (cha-) element is related to the concept of being cold or chilling. Over time, the form has evolved, but the core meaning has remained consistent in describing low temperatures. The word '물' (mul) is a fundamental noun in Korean for 'water.' Its origins are very ancient, appearing in various forms in early Koreanic languages. It is a core vocabulary item, indicating its long-standing presence and importance in the language. Therefore, '차가운 물' literally translates to 'cold water.' The descriptive phrase directly conveys the meaning of water that is at a low temperature, often chilled, reflecting the simple and direct nature of Korean word formation for such common concepts. There isn't a complex, multi-layered etymological history beyond the straightforward combination of these two ancient and widely used Korean words.