Sclavia vs Slavia

Sclavia

name
  • A former continent in Earth. A proposed ancient continent that would later merge together with the continents of Vaalbara and Superia to form the supercontinent Kenorland. It is observable as a former supercraton composed of the cratons of Slave, Wyoming, Dharwar, Zimbabwe 

  • Synonym of Slave Craton, a sub-craton forming part of the Canadian Shield, the continental core of North America 

Slavia

name
  • A general term for an area inhabited by Slavs; the land of the Slavs. 

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