臆
オク, ヨク, むね, おくする

timidity, heart, mind, fear, cowardly

JLPT0 G7 S17 F5000

As per 意# (contained in the heart) + 肉 flesh → *heart*; *chest*; *breast* (← physical seat of the heart, regarded as the source of *thought*). *Timidity* is a borrowed meaning.

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