预测
yūcè · HSK 4
forecast
🔮 预 (beforehand) + 测 (measure) = measure beforehand → forecast
预 carries the sense of in-advance or preparatory; 测 means to measure or gauge. Together they describe gauging something before it happens — a forecast or prediction.
测 — water radical 氵 + 则 (rule/standard)
测 combines the water radical 氵, hinting at meaning, with 则 (rule, standard), which also supplies the sound. Originally it referred to gauging the depth of water, then broadened to mean measuring, surveying, or testing in general.