As the eleventh hour struck, he entered with a swaggering air, attended by two of the most dissolute and reckless of his boon companions.
…which lay at the top of an open portmanteau; put on, in lieu of his blue and high-buttoned frock-coat, a coat of Villefort’s of dark brown, and cut away in front; tried on before the glass a narrow-brimmed hat of his son’s, which appeared to fit him perfectly, and, leaving his cane in the corner where he had deposited it, he took up a small bamboo switch, cut the air with it once or twice, and walked about with that easy swagger which was one of his principal characteristics.
There are no more uses of "swagger" in the book.
Show samples from other sources
The team swaggered onto the court—full of confidence.
The cowboy swaggered into the saloon with his holster unstrapped.