approbative vs sycophantic

approbative

adj
  • Sanctioning officially, giving authorization or approval to something. 

  • Expressing approval. 

noun
  • A word or grammatical form which denotes a positive affect expressing the appreciation or approval of the speaker. 

sycophantic

adj
  • Obsequious, flattering, toadying. In other words, eager to please. 

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