热潮
rècháo · HSK 7
upsurge
🌊🔥 热 hot + 潮 tide = a hot tide, a craze that surges in like a heated wave
热 means hot and 潮 means tide or current. A hot tide is a surge of popular enthusiasm, the upsurge or craze that floods in fast. Note rècháo also literally describes a heat-driven swell of water.
热 — 执 zhí (phonetic) + 灬 fire radical
热 is a semantic-phonetic compound: the bottom 灬 (a variant of 火 'fire') gives the meaning of heat, while 执 on top supplies the sound. Originally written 熱, it depicted fire below a phonetic element, and the meaning naturally extended from physical heat to 'hot' weather and 'enthusiastic' feelings.
潮 — water 氵 + morning 朝
潮 is a semantic-phonetic compound. The water radical 氵 gives the meaning (tide, sea water), while 朝 (morning) supplies the sound. Originally it referred to the morning tide, later broadened to mean tides in general and, by extension, currents or trends.