Enchanting is a mechanic that augments armor, tools, weapons (swords and bows), and books with one or more of a variety of "enchantments" that improve an item's existing abilities or imbue them with additional abilities and uses.
Known Enchanted Weapons
Gameknight999's Diamond Sword
Gameknight's diamond sword is enchanted.
Sticher's bow has enchantments, one of which is Flame
Hunter's bow has multiple enchantments, such as Flame and Infinity.
Gameknight's bow also has the Flame enchantment
Crafter's Iron Sword