1. To begin or to inaugurate with a ceremony intended to bring good luck: Mr. and Mrs. Smith auspicated their 50th wedding anniversary with champagne before dinner, hoping that the years to follow would bring as much pleasure as the first 50 years.
2. To give a favorable turn when starting something; to inaugurate; a sense derived from the historical practice of observing birds in flight, before undertaking an important decision or action: The leaders of Rome usually auspicated their public activities before proceeding with them.