Traits are not the same thing as an Enchant. Legendary - increased chances to apply status effect by 110%.Epic- increased chances to apply status effect by 100%.Superior- increased chances to apply status effect by 90%.Fine- increased chances to apply status effect by 80%.White - increased chances to apply status effect by 70%.For example, here is how Traits increase when you improve a bow with the Charged trait:
Traits are calculated by a percentage value, such as 'increases weapon attack speed by 20%' The percentage value of a Trait is increased with increased improvement quality of the item. Some Traits might seem the same between item types, but they will take gemstones which are unique for that item's version of the trait. For instance, there is a set of Traits specific to armor, and a different set of Traits that apply to weapons. The kinds of Traits you can get are different, depending on what kind of item it's on. Traits exist on weapons, armor, and jewelry. A Trait in ESO is a special property on added to a crafted item which makes that item do nifty things in Elder Scrolls Online.