訓 はだ ・ 音 キ
漢越音: cơ
The flesh radical 月 gives the meaning and 几 the sound: the body's outer covering. Sino-Vietnamese cơ, as in cơ phu (skin).
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赤ちゃんの肌はやわらかい。 (あかちゃんのはだはやわらかい)
A baby's skin is soft.