Enchanted items are items that is better than the basic type.
They are identified by the +1, +2, +3 or +4 at
the end of the item name.
Also, the higher the number, the rarer the item is.
The enchantments affect the value, weight and effect of the item;
i.e. for armour its ac (armour class),
for weapons its wc (weapon class).
Items that already have a magical effect are never enchanted.