Answer:
“whose origin was a Terminus.“
Explanation:
Paradox is a contradictory assertion itself or contradictory to our expectations.
In the given example, two important words that make this paradox are origin and terminus. Origin, we can say, a start position, a position where something starts or is coming from, or develop from it. Terminus is the end of a bus or a train line, the last station, so generally the outermost point.
Pun is a wordplay that has an intentional humorous effect.
So, the excerpt <em>“whose origin was a Terminus.“ </em>is both paradox and a pun.