Source : Webster's Revised Unabridged Dictionary (1913)

Quondam \Quon"dam\, a. [L., formerly.]
   Having been formerly; former; sometime. ``This is the quondam
   king.'' --Shak.

Quondam \Quon"dam\, n.
   A person dismissed or ejected from a position. [R.] ``Make
   them quondams; . . . cast them out of their office.''
   --Latimer.

Source : WordNet®

quondam
     adj : belonging to some prior time; "erstwhile friend"; "our
           former glory"; "the once capital of the state"; "her
           quondam lover" [syn: {erstwhile(a)}, {former(a)}, {once(a)},
            {onetime(a)}, {quondam(a)}, {sometime(a)}]