What does Avicii mean and how did the DJ choose the name?

DJ Avicii had revealed that a friend once told him the word 'Avici' meant the 'lowest level of Buddhist hell'. This, he said, was around the time he wanted a username to sign into Myspace. However, on finding out the username had been taken, he added another "I" to the word making it 'Avicii', which later became his stage name.