垫子
diàn zi · HSK 7
cushion
🛋️ sounds like DEN zi — the pad you sit on in your den
垫 (diàn) breaks down as 土 earth/ground + 执 holding — something held on the ground to sit on. A cushion or mat is exactly that: a soft layer between you and a hard surface.
垫 — earth 土 + 执 (zhí, phonetic)
垫 combines the earth radical 土 with 执 as the phonetic component. Originally it referred to padding or cushioning material placed underneath something, often involving earth or fabric to level a surface. The meaning extended to 'cushion,' 'mat,' and verbally 'to pad' or 'to advance money' (fill a gap).
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.