The upper part of the ancient character "寒" was "宀", which represented a house. The lower part of the character looked like a person surrounded by hays, and the two dots at the bottom of the character indicated ice. This character carried the meaning of coldness by depicting a scene where a person kept warm by sitting on hays in a room while it was icy cold outside.
严寒(yánhán): severe cold
寒假(hánjià): winter vacation
寒流(hánliú): cold current
Hánlěng de dōngtiān zhōngyú guò qù le.
The cold winter has finally drawn to a close.
Chūshēn pín hán de háizi wǎngwǎng gōngzuò dōu hěn nǔlì.
Children from the families across the tracks always work hard.
Hánjià qījiān,wǒ shénme dìfang dōu méiyǒu qù,yìzhí dāi zài jiā li.
In the winter vacation, I went to nowhere, and just stayed at home.