忉 dāo grieved Definitions Defs Origin Strokes Stroke Words Sentences Sents Components 忄 忄 Meaning component xin, xīn heart heart 刀 刀 Sound component dāo knife Character Evolution Clerical Eastern Han 25-220 AD Clerical Eastern Han 25-220 AD Regular Modern ▼ More ▲ Less Historical Pronunciations Old ChineseZhengzhangtaːw Sources Readings & variants Unicode Historical pronunciations Zhengzhang Shangfang Historical images Academia Sinica