The meaning of "over" here?

Question

He stayed married over a quarter of a century.

This "over" has two possibilities? a time span..like "over many years"

and "over" means more than?

Answer 1

Yes, that's right. Over can have either meaning:

1. He stayed married more than a quarter of a century.
2. He stayed married for a quarter of a century.

Context could make one meaning or the other obvious, but in this case we have no context so all we can say is that it's ambiguous.