The Meaning of Life, the Universe, and Everything.
Edge of Suffering
KimiTech Monomolecular Edge Melee Assault Blade
From Which The End Begins
a very large rubber sex toy (it's hilarious for SMP death messages xD)
Shard of 10,000 Edges
Forty Thousand Cuts
Who Pierces The Heavens
The North Wind
KimiTech Ballistic Arcane Projectile Launcher
Three Score and Four Quills
Deaths' Graceful Dance
I think "Death Wish" would be a cool name for a sword. If you wanted to be funny, name your sword "Friendship" so when you kill someone it will say "(victims name) was slain by (your name) with Friendship." If you want to be original, don't name your sword "The Blade of Notch". If I had 1 diamond for every time I have seen someone use that name for their sword, I could make dozens of sets of diamond armor.
unfortunately most of my bow names come from COD so I have a Barret 50. Cal in my world, but my swords come in all types of names, mostly depending on what it is good for. My smite 3 sword is the "Zombie Cleaver", my bane of arthropods 4 is the "Spider Vanquisher", my Fire Aspect 2 sword is "Lightsaber" and many other things. I would name your weapon depending on what it is best at.