He delighted people with his charm and 'ease' of manner. [=his relaxed and easy manner]
The students might respond better if the teacher 'eased up on' them a little.
These features can be modified 'with the greatest of ease'. [=very easily]
(..) And, Dr. Meade, she might die! Die! Look at them! Bleeding to death in front of my eyes! No chloroform! No bandages! Nothing! Nothing to even ease their pain! Now run along and don't bother me. Now don't worry, child. There's nothing to bringing a baby. Now bring those stretchers in here! (..)1939 Gone with the Wind