The Mau Interpreter, Itu, gave you a potion that would help you understand the Mau language. Drink the potion and speak with the Skurv in the dungeon to find out if it works.
Step 1. Drink the 'Mau Secret RemedyA potion which enables one to speak the language of the Mau. Your talkage may vary. that enables you to understand the Mau language.
Step 3. Talk with ItuEmgata's interpreter. He stands at the entrance of Altgard Fortress with him. Though he stammers sometimes, he speaks the Asmodian language quite well..