毯子
tǎn zi · HSK 7
blanket
🛌 毯 = 毛 wool + 炎 warmth: a woolly thing that keeps you warm; 子 is just a noun suffix
The character 毯 pairs 毛 (wool, fur) with 炎 (blaze, heat), so a blanket is literally the wool-warmth object. 毯子 (tǎn zi) adds the neutral-tone 子 suffix common to everyday nouns like 桌子 and 椅子.
子 — pictograph of a baby/child with arms out
子 began as a pictograph of a swaddled infant with a large head and outstretched arms, originally meaning 'baby' or 'child.' From there it broadened to 'son,' 'offspring,' and a respectful suffix for masters like 孔子 (Confucius). It also became one of the twelve earthly branches.