What does the word casuistry mean?

Usage examples for casuistry

  1. It is sheer meddling, and no casuistry can fitly give it any other name. – Recollections of Europe by J. Fenimore Cooper
  2. But she raised her face when she ended, and, when the light fell upon that, he forgot all casuistry. – Running Sands by Reginald Wright Kauffman