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 like reproaching her with her infirmity.
His step, once quick and sure, despite his infirmity, was now less certain.
Yet that is the infirmity of the seneschals, who do not know their sovereign when he appears.
He viewed with a comfortable tolerance this infirmity of theirs.
Excuse my infirmity, but there are some feelings that one never can throw off.
Just pretend not to notice, as he would pretend not to notice any infirmity or vanity of yours.