An element in the name Fornarthan “North Beacon” from notes on The Rivers and Beacon-hills of Gondor of the late 1960s (VT42/20). Since the initial element of this name is clearly “north”, the element narthan must be “beacon”, perhaps a combination of √NAR “fire” and √THAN “kindle, set light to”, as suggested by Carl Hostetter (VT42/30 note #47).