Notak
Ainu word for the edge of a sharp tool like a knife.
Mekkashike
Ainu word for the back of a knife, or sword. Also the ridge of a mountain or house.
Kusabi-hi (楔樋)
Japanese term for an irregular hamon sometimes found on spearheads
On weight and balance
In researching antique arms -or any kind of material culture for that matter- it is of paramount importance to actually feel and handle pieces.
Kuhen
Machu for a groove on a blade or arrowhead
Dāo cáo (刀槽)
Qing Chinese for a groove in a saber blade.
Chinese saber with "naginata-hi"
A Chinese waist saber or yaodao / peidao of the first half of the 18th century.
