English-Ireland (top end) Renown is listed as a verb in Chambers Dictionary. I looked for etymology - the similarity with known is tantalising.... The M.E. verb renown has been assimilated to the noun via renowned famous, celebrated (c.1375). Source.
In Depth: Nervous. The nervous system has two major parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The central system is the primary command center for the body, and is comprised of the brain and spinal cord. The peripheral nervous system consists of a network of nerves that connects the rest of the body to the CNS.
The Nervous system performs its functionality with the help of the network of specialized cells that are generally called neurons. The nervous system is divided in two parts known as the central nervous system (CNS) and the peripheral nervous system (PNS). The working of the nervous system is complex one that is performed by the nerve cells.