Your parents are now declining fast under the weight of years and infirmity.
I have dropped off every physical burden and infirmity I had, and I am in the pink of condition.
Discontent is the want of self-reliance: it is infirmity of will.
The Princess was not sure of “infirmity,” but it sounded well.
To tell her of all this, though he must needs do it for her safety, was ...