low-level vs nonvirile

low-level

adj
  • not intense 

  • of, or relating to a program, or to code in which each statement corresponds to a single machine instruction 

  • detailed 

  • Situated or occurring at a lower level. 

  • relatively unimportant 

nonvirile

adj
  • Not virile. 

  • Pertaining to a grammatical gender used in some Slavic languages for plurals of masculine animate, masculine inanimate, feminine, and neuter nouns, i.e. for all groups that do not include men or personal masculine nouns. 

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