胎
tāi · HSK 7
tire
🤰🛞 月 flesh-body radical + 台 (tāi sound); a body growing inside = fetus; also tāi sounds like tire
The 月 radical marks flesh and body parts, and 台 supplies the tāi sound. A new body forming inside is the fetus or litter sense. The tire meaning is an abbreviation of 轮胎, and tāi conveniently echoes the English word tire.
胎 — flesh radical 月 (肉) + phonetic 台
A semantic-phonetic compound. The flesh radical 月 (a form of 肉) signals a meaning related to the body, while 台 supplies the sound. Originally referring to the womb or fetus in the womb, 胎 extended to mean embryo, and later by analogy the inner layer of objects like tires.