co- vs demi-

co-

prefix

  • to the same degree 

  • together; mutually; jointly 

  • partner or subordinate in an activity 

  • of the opposite, of the counterpart; dual 

demi-

prefix

  • partial 

  • half 

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