somewhere vs wellnigh

somewhere

adv
  • In an uncertain or unspecified location. 

  • To an uncertain or unspecified location. 

  • At some unspecified point. 

noun
  • Unspecified or unknown (unlocated) place or location. 

wellnigh

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