sedate1
  
  adj.
  - calm and unhurried.
- staid and rather dull.
Derivative
  
    - sedately adv.
- sedateness n.
 
  Etymology
  ME (also as a medical term in the sense ‘not sore or painful’): from L. sedatus, sedare ‘settle’, from sedere ‘sit’.
 
  
    
sedate2
  
  
  Etymology
  1960s: back-form. from sedation.