onomatopoeic vs reflective

onomatopoeic

adj
  • Of or relating to onomatopoeia. 

  • Having the property of onomatopoeia. 

reflective

adj
  • That reveals or shows; revealing; indicative of. 

  • Involving reflection. 

  • Reciprocal. 

  • That reflects, or redirects back to the source. 

  • Pondering, especially thinking back on the past. 

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