onomastics vs verbiage

onomastics

noun
  • The branch of lexicology devoted to the study of names and naming, especially the origins of names. 

verbiage

noun
  • The manner in which something is expressed in words. 

  • Overabundance of words. 

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