Their eager affection in meeting, their exquisite delight in being together, their hours of happy mirth, and moments of serious conference, may be imagined; as well as the sanguine views and spirits of the boy even to the last, and the misery of the girl when he left her.
There are no more uses of "mirth" in the book.
Show samples from other sources
It was an evening of many stories and great mirth.
He felt no mirth or humor and wondered if there’d ever be a time again when he would.