at ease vs poised

at ease

prep
  • Allowed to refrain from being in rigid formation. 

  • Free of anxiety; not stressed or tense. 

  • In a relaxed position with the feet apart rather than at attention. 

poised

adj
  • Possessing poise, having self-confidence. 

  • Balanced, in position, equilibrium 

  • Ready, prepared. 

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