沈める
しずめる · shizumeru · JLPT N1 · verb-ichidan
to sink
🪨 Water radical 氵 + 沈 (sink); homophone 静める means calm down, so 沈める is sink something
沈 pairs the water radical 氵 with 冘, which gives the sound chin and the sense of sinking. める makes it transitive: to sink something on purpose. Intransitive 沈む means sink on its own.