anxious vs valiant

anxious

adj
  • Having a feeling of anxiety or disquietude; extremely concerned, especially about something that will happen in the future or that is unknown. 

  • Earnestly desirous. 

  • Nervous and worried. 

  • Accompanied with, or causing, anxiety; worrying. 

valiant

adj
  • Possessing or showing courage or determination; brave, heroic. 

  • Characterized by or done with bravery or valour. 

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