The Collaborative International Dictionary
Infirmly
Infirmly \In*firm"ly\, adv. In an infirm manner.
Wiktionary
infirmly
adv. In an infirm manner; feebly.
Usage examples of "infirmly".
That as to myself, it was manifest I had neither the strength or agility of a common yahoo, that I walked infirmly on my hinder feet, had found out a contrivance to make my claws of no use or defence, and to remove the hair from my chin, which was intended as a shelter from the sun and the weather.
I know that sounds crazy, but I realy think — ' He stopped, mouth trembling infirmly, lips sheened with a thin membrane of spittle.