A parrying dagger is like a special knife that a person can use to protect themselves in a fight. It's not just any regular knife though - it's designed specifically to help block or stop someone else's weapon from hurting you.
Imagine you're playing with toy swords or sticks with a friend. If you both swing at each other at the same time, your sticks might hit each other and make a loud "CLASH!" sound. The parrying dagger works kind of like that, except it's much stronger and sharper.
When someone with a parrying dagger is in a fight, they can use the dagger to hit the other person's weapon really hard. This can make the other person's weapon bounce off or miss, which gives the person with the dagger a chance to attack back.
The parrying dagger has a special shape that helps it do this job really well. It has a short, wide blade that's more like a triangle than a rectangle. The blade has a little hook-shaped part that sticks out called a quillon, which can help catch or block another weapon before it hits you.
Overall, the parrying dagger is a cool tool that can help someone stay safe in a fight. As long as they use it the right way, of course!