Wiktionary
congratulatorily
adv. In a way that is congratulatory.
Usage examples of "congratulatorily".
Le Chapelier clasped hands with him and became congratulatorily voluble, until interrupted by the red-coated giant at the door.
He thumped the ticket-taker's chest congratulatorily as if he were himself not only an ancient Lykeionian but the designer of unbalconied amphitheaters, and the fellow acknowledged the tribute with a gracious grunt.