一切經音義 7.115

7.115

暗鈍（徒混反蒼頡篇云鈍頑也案暗鈍者識暗濁不明了也說文云鈍錭大牢反也錭頑鈍也從金屯聲屯音豚）。

Dull-witted and blunt (andun 暗鈍: [the lower word is pronounced with the fanqie] tu + hun [dun]. The Cangjie pian says: 'Dun 鈍 means stubborn and stupid.' We note: dull-witted and blunt refers to consciousness being murky and not clear. The Shuowen says: 'Dun means gou' (pronounced da + lao [lao]); gou 錭 means stubborn and blunt; it is categorized under metal 金 and takes tun 屯 as phonetic; 屯 is pronounced tun 豚.).