methodical vs syllogistic

methodical

adj
  • Arranged with regard to method; disposed in a suitable manner, or in a manner to illustrate a subject, or to facilitate practical observation. 

  • In an organized manner; proceeding with regard to method; systematic. 

syllogistic

adj
  • Of or pertaining to a syllogism. 

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