quondam

quondam [ˈkwɒndəm] adv.

1.) At one time, formerly, heretofore, ‘whilome’. rare.

quondam [ˈkwɒndəm] n.

1.) The former holder of some office or position; one who has been deposed or ejected.

quondam [ˈkwɒndəm] adj.

1.) That formerly was or existed: of persons (the most frequent use), things, qualities, etc. (O.E.D. 2nd Ed.).

Etymology: Latin, from quom, when.

"— Hector: Who must we answer?
— Aeneas: The noble Menelaus.
— Hector: O you, my lord? By Mars his gauntlet, thanks!
Mock not that I affect the untraded oath;
Your quondam wife swears still by Venus' glove.
She's well, but bade me not commend her to you.
— Menelaus: Name her not now, sir; she's a deadly theme."
(Troilus and Cressida, William Shakespeare, 1609)

(Les Amours de Pâris et d’Hélène, Jacques-Louis David, 1788)