A small smudged sign beside it read: ALL PROCEEDS FROM THE FOUNTAIN OF MAGICAL BRETHREN WILL BE GIVEN TO ST MUNGO’S HOSPITAL FOR MAGICAL MALADIES AND INJURIES.
’He has been taken to St Mungo’s Hospital for Magical Maladies and Injuries.
MAGICAL BUGS… Second floor Contagious maladies, e.g. dragon pox, vanishing sickness, scrojungulus, etc.
— CHAPTER TWENTY-TWO — St Mungo’s Hospital for Magical Maladies and Injuries Harry was so relieved she was taking him seriously that he did not hesitate, but jumped out of bed at once, pulled on his dressing gown and pushed his glasses back on to his nose.
There are no more uses of "malady" in the book.
Show samples from other sources
While in the meantime, cities crumble; education, security, medicine for every other malady known to man, charity, humanitarian aid—the whole world goes to pot so WICKED can do whatever they want to do.
James Dashner -- The Death Cure
I could normally "remove her from her service" for medical reasons, with his permission, of course, but to select her out regularly, and only her, before indications of an illness or malady was unusual indeed.