loanwords from Arabic Tibat or Tobatt , they disagree over the original etymology . Many sources propose Tibetan Stod-bod (pronounced tö-bhöt ) "Upper Tibet",some suggest Turkic Töbäd "The Heights" (plural of töbän ),and a few favor Chinese Tǔbō or Tǔfān . Language The Tibetan language is generally classified as a Tibeto-Burman