Language: Mandarin Chinese
Source: Classical literature
Dāo rèn bēng (刀刃崩) means: "Saber edge is collapsed". A nick in the edge.1
Dāo rèn bēng caused by another edged weapon on a Ming-Qing transition period saber blade.
Some more edge damage on a Chinese saber blade.
For a complete overview of saber terminology, see: A Chinese saber glossary.
1. Tongwen Guanghui Quanshu (同文廣彙全書) or "Enlarged and complete dictionary" of 1702. A Qing imperial dictionary in Chinese and Manchu, each entry double-checked and approved by the Kangxi emperor.