quondam (adjective)

1. In the quondam kingdom of Eldoria, there were magical creatures that roamed freely.

2. She stumbled upon a quondam love letter hidden in the attic, stirring feelings of nostalgia and longing.

3. Why did the quondam car cross the road? To prove it still had some mileage left!

4. The painter captured the essence of the quondam era perfectly in his historical masterpiece.