涙
なみだ · namida · JLPT N3 · noun
tear
💧😢 涙 = water 氵 + return 戻; namida sounds like nami (wave) + da
The kanji puts the water radical 氵 next to 戻 (modoru, to return), which also gives the old sound. For the reading, nami already means wave (波) in Japanese, so a tear, namida, is a small wave that comes from the eye.