I thought that at first, too. But the Pesh-Kabz is slightly different in shape, and intended for a different purpose.
A "Persian dagger" can be anything with this same general shape. And, as such, the Pesh-Kabz
is a "Persian dagger", but, it is a special type, within the general category.
The Pesh-Kabz is specifically meant for penetrating armor, and it's blade shape, and cross-section, are a little different from the dagger grind that you see on Uemuzikan's example.
So, a Pesh-Kabz is a Persian dagger, but not all Persian daggers are Pesh-Kabz(es?)
Conjugating non-English nouns is not always easy...
Edit: sorry, it's a "long clip point", not a dagger grind. :foot: