惬 忄 + 匚 + 夹 忄 Part xīn heart 匚 Part fāng box 夹 Part jiā be wedged or inserted between Appears in characters like: 快 忙 慢 懂 怕 性 怪 恨 慌 惨 懒 情 怀 惊 恤 恤 忆 悚 悍 惯 恰 悟 忧 愣
