I bet you can't pronounce it either.

The Lord of the Rings Online Lorebook has been updated with another new entry today.

As many unfortunate adventurers have found to their doom, a few places within the Barrow-downs are known to hold the greatest dread. Of these Haudh Iarchith, the long-abandoned clan-barrow of a great and wealthy family, sits as a den of Angmar’s Dead. For those seeking to improve their standing with the hunters of Bree, prepare to delve deep into this dungeon.

See the entry at the LoTRO Lorebook.