nation vs nationhood

nation

noun
  • A sovereign state. 

  • Damnation. 

  • An association of students based on its members' birthplace or ethnicity. 

  • A historically constituted, stable community of people, formed based on a common language, territory, economic life, ethnicity and/or psychological make-up manifested in a common culture. 

adv
  • Extremely, very. 

nationhood

noun
  • The fact of achieving national independence or autonomy. 

  • The quality of being a nation. 

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