质地
zhì dì · HSK 7
texture
🪵 质地 = 质 substance + 地 ground = the substance of the base material, its grain
质 means substance or quality; 地 means ground or base. Together they name what a material is made of underneath — its texture, grain, or built-in quality. Sound: zhì dì, two falling fourth tones back to back.
地 — earth 土 + 也 (phonetic)
地 is a semantic-phonetic compound. The left component 土 means 'earth' or 'soil' and gives the meaning, while 也 on the right hints at the pronunciation. Originally referring to the ground or land, it broadened to mean 'place,' 'region,' and 'territory.'