Enchantments

Curse of Bulking - Increases the wearer's size by 25%.
Found randomly on enchanted loot.
Applies to Leggings.

Curse of Fragility - The enchanted item takes 33% more durability damage.
Found randomly on enchanted loot.
Applies to any item with durability.

Ancient Unbreaking (I-IV) - Default Unbreaking enchantment, but goes to 1 higher level.
Found on Tungsten loot.
This is an ancient enchantment, so its name is displayed in a mysterious language.

Ancient Sharpness (I-VI) - Default Sharpness enchantment, but goes to 1 higher level.
Found on Tungsten loot.
This is an ancient enchantment, so its name is displayed in a mysterious language.

Vigor (I-III) - The enchanted item deals 1+((Level-1)/2) extra damage.
Found with Enchanting Tables, randomly on enchanted loot, and from Piglin Shroomists' held Crossbows.
Applies to Crossbows.

Ambush (I-II) - The enchanted item deals 2*Level extra damage to mobs who are not targetting a player (including passive mobs).
Found with Enchanting Tables and randomly on enchanted loot.
Applies to Swords.

Fire Proffer (I-II) - The enchanted item sets hit mobs on fire for 6+(7*(Level-1)) seconds.
Found with Enchanting Tables, randomly on enchanted loot, and from Villager-traded items.
Applies to Hoes.

Penetration (I-III) - The enchanted item ignores 10*Level% of armor when attacking.
Found on loot from Bastion Remnant chests.
Applies to Axes.

Poison Aspect (I-II) - The enchanted item gives the Poison 1+Level effect to hit mobs for 3+(2*(Level-1))% seconds.
Found with Enchanting Tables, randomly on enchanted loot, and from Villager-traded items.
Applies to Swords and Maces.

Necromancy - Summons an unkillable mob where the Trident hits. These do not drop loot and despawn after some time. The type of mob depends on the location the Trident hits. A Drowned spawns in the water, a Husk spawns in a Desert biome, and a Zombie spawns otherwise.
Found on Enchanted Books dropped by the Drowned Necromancer.
Applies to Tridents.

Magnetism - When killing a mob using this item, the user automatically picks up its drops.
Found with Enchanting Tables, randomly on enchanted loot, randomly on mob loot, and from Villager-traded items.
Applies to Swords, Axes, Pickaxes, Shovels and Hoes.

Midas Touch - When killing a mob using this item, all drops are converted to Gold Nuggets.
Found from Piglin Bartering or Cat Bartering.
Applies to Hoes.

Soul Stealing (I-VIII) - When killing a mob using this item, the user has a 1.25*Level% chance to get its Soul as an item.
Found on loot from Ancient City chests.
Applies to Hoes.

Treasure Finder - Allows the user to find treasure from fishing, even when they're not in "open water."
Found on loot from Buried Treasure, Large Underwater Ruins, and Shipwreck chests.
Applies to Fishing Rods.

No custom enchantments fit this category!

Antigravity - Decreases the wearer's gravity by 50%. Antigravity does not mitigate fall damage.
Found on loot from End City chests.
Applies to Boots.

Mountain Climber - Allows the wearer to "step up" full blocks, like you can with slabs.
Found on loot from Igloo chests.
Applies to Boots.

Dwarfing - Decreases the wearer's size by 25%.
Found randomly on enchanted loot.
Applies to Leggings.

Agility (I-IV) - Increases the wearer's speed by 0.002*Level.
Found with Enchanting Tables, randomly on enchanted loot, from Villager-traded items, and from Cat Bartering.
Applies to Boots.

Velocity (I-IV) - Increases the wearer's speed by 0.04+(0.03*(Level-1)).
Found on loot from Wrecked End Ship, End City, Village Temple, and Shipwreck chests.
Applies to Wolf Armor and Horse Armor.

Ancient Efficiency (I-VI) - Default Efficiency enchantment, but goes to 1 higher level.
Found on Tungsten loot.
This is an ancient enchantment, so its name is displayed in a mysterious language.

Retaining - Halves the chance that bait is used up when fishing (excluding Heart of the Sea).
Found on loot from Buried Treasure, Large Underwater Ruins, and Shipwreck chests.
Applies to Fishing Rods.

Leeching -  When a mob is killed using this item, the user gets the Regeneration  IV effect for 1 second.
Found via fishing.
Applies to Swords.

Fireproof -  This Fishing Rod can be used in Lava. Enchantments such as Lure do not affect fishing while fishing in Lava. When fishing in Lava, particles will display when the Fishing Rod is ready to be reeled in. If it's not reeled in quick enough, the Fishing Bobber burns. Tip: Use Ender Outputs to easily collect items caught in Lava.
Found via fishing, or in Nether Fortress Chests.
Applies to Fishing Rods.

Aquatic Creation - Summons a random fish (Cod, Salmon, Tropical Fish, or Pufferfish rarely) when attacking. This fish drops no items.
Found on Enchanted Books dropped by the Drowned Necromancer.
Applies to Swords.