Wrong spelling for item Buccaner's Tricorne on achievement Dress Like a Pirate Day
/em polishes his magnifying glass.
On Achievement "Dress Like a Pirate Day" (located under Items tab) you can read the following:
Obtain a complete set of buccaneer armor consisting of a buccaneer's tricorn, a buccaneer's shirt, a pair of buccaneer's boots, and a buccaneer's sash.
* Speak to Terremiaux with all four items equipped.
Bolded item is actually called Bucanner's Tricorne.
To E or not to E? That is the question...