I got the Traveller's Shoes from a battle, and when I looked closer at them, I noticed that Traveller had one too many L's! They're Level 50+ only, and give +5 Weapon Power and +57 Health.
These words (Traveller, Duellist, and Dueller) are technically correct in British English. I wonder if it's supposed to be a reference or that the person who wrote them may be British.