Quondam

ˈkwändəm,-ˌdam/
adjective; formal
that once was; former.
"quondam dissidents joined the establishment"

"The simple father was beginning to submit that he hoped his son, the quondam Grinder, huffed and cuffed, and flogged and badged, and taught, as parrots are, by a brute jobbed into his place of schoolmaster with as much fitness for it as a hound, might not have been educated on quite a right plan in some undiscovered respect, when Mr. Dombey angrily repeating “The usual return!” led the Major away." - Charles Dickens, Dombey and Son