Primordial Affinity in Wolcen: Lords of Mayhem is an in-game currency. You can use it to reset your passive skills, the amount of Primordial Affinity you need changes based on how many passive points you use through leveling.
Primordial Affinity Information
How to get Primordial Affinity
You won’t find Primordial Affinity lying around as you would gold. You have to go out of your way to earn it through playing the game, and looting particular items off of enemies after you take them down. The item you want to go for is enneracts.
Enneracts are items that contain new skills for your characters. If you use them, the enneract disappears from your inventory, and your character has a new ability they can use in combat. They won’t immediately be able to use it, though. They have to use the correct weapon, such as a bow, pistol, sword, daggers, stave, a greatsword, or an ax. If you’re using the proper weapon you can use the skill. When you find an enneract you already have, return to Stormfall – Palace District and speak to Demetra. You can sell her your enneracts, and she’s going to give you Primordial Affinity for your trouble.