motherland vs superpower

motherland

noun
  • The country of one's birth. 

  • Mother country in contrast to its colonies. 

  • Country of origin. 

  • The country of one's ancestors. 

superpower

noun
  • A sovereign state with dominant status on the globe and a very advanced military, especially the United States or formerly the Soviet Union. 

  • Excessive or superior power. 

  • A fictional extraordinary physical or mental ability, especially possessed by a superhero or supervillain. 

  • A tetration. 

verb
  • To give extraordinary powers to. 

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