attentive vs slogging

attentive

adj
  • Paying attention; noticing, watching, listening, or attending closely. 

  • Courteous; mindful. 

slogging

noun
  • An act or an instance of slogging or working laboriously. 

  • A beating or thrashing. 

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