developed vs furtherly

developed

adj
  • Advanced, fully formed. 

  • Not primitive; not third-world. 

  • Mature. 

  • Containing man-made structures such as roads, sewers, electric lines, buildings, and so on. 

  • Having useful or necessary infrastructure. 

  • Processed and fixed; containing a visible negative (or positive for slide film) image 

furtherly

adj
  • Favorable, advanced. 

adv
  • In a further manner. 

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