Answer:
Tartary or Great Tartary was a historical region in Asia located between the Caspian Sea-Ural Mountains and the Pacific Ocean. Tartary was a blanket term used by Europeans for the areas of Central Asia, North Asia, and East Asia unknown to European geography.
Knowledge of Manchuria, Siberia and Central Asia in Europe prior to the 18th century was limited. The entire area was known simply as "Tartary" and its inhabitants "Tartars". In the Early modern period, as understanding of the geography increased, Europeans began to subdivide Tartary into sections with prefixes denoting the name of the ruling power or the geographical location. Thus, Siberia was Great Tartary or Russian Tartary, the Crimean Khanate was Little Tartary, Manchuria was Chinese Tartary, and western Central Asia (prior to becoming Russian Central Asia) was known as Independent Tartary.
European opinions of the area were often negative, and reflected the legacy of the Mongol invasions that originated from this region. The term originated in the wake of the widespread devastation spread by the Mongol Empire.
The adding of an extra "r" to "Tatar" was suggestive of Tartarus, a Hell-like realm in Greek mythology. In the 18th century, conceptions of Siberia or Tartary and its inhabitants as "barbarous" by Enlightenment-era writers tied into contemporary concepts of civilization, savagery and racism.
