No. Typically it costs the same as an inked press run. This is because a blind deboss still requires its own plate, its own press setup and its own press run. The only time blind debossing is less expensive than a traditional inked letterpress run is when compared to metallic or fluorescent ink printing.
Sorry, we were unable to find the defintion for this term. This is our fault, we probably put a thing-a-ma-jig in the whats-it spot.