What does the word defile mean?

Usage examples for defile

  1. The touch of a child of the same caste who had not learned to eat grain did not defile, but if the child ate grain it did. – The Tribes and Castes of the Central Provinces of India Volume II by R. V. Russell
  2. Like a vulture bent upon tearing the poor defenceless bird that falls into its claws, that cruel priest seemed determined to defile and ruin my heart. – The Priest, The Woman And The Confessional by Father Chiniquy