kibitka vs komatik

kibitka

noun
  • A Russian type of telega or sleigh with a (usually rounded) cover over the passenger seats. 

  • A circular tent or yurt used by various nomadic peoples such as the Kalmyks and Kyrgyz. 

komatik

noun
  • A rawhide-lashed sledge with wooden crossbars and runners, first invented and used by the Inuit of Northern Canada, but since used also by non-Inuit people. 

How often have the words kibitka and komatik occurred in a corpus of books? (source: Google Ngram Viewer )