She begs you to excuse the informality.

When Fenton went to the club that night he left Helen Greyson and Mr. Candish, both of whom were sufficiently familiar to excuse the informality.

"Professor," this strange man then said, "you must excuse the informality with which I receive you, and the disorder reigning in this lounge."

"It was good of your Holiness to see us," he said, "and perhaps the gravity of our errand may excuse the informality of our visit."