What does the word undermine mean?

Usage examples for undermine

  1. Later criticism of His personal conduct and habits with the despised classes is mingled with an attempt to work upon His disciples and undermine their loyalty. – Quiet Talks about Jesus by S. D. Gordon
  2. Undermine the foundation, and still pretend that he desires the fabric to stand! – The Rise and Fall of the Confederate Government, Vol. 1 (of 2) by Jefferson Davis
  3. Does he not attempt with that to undermine his worth? – Lucky Pehr by August Strindberg