Sern in UT/463 is a misprint, see VT/42:11
Noldorin
sarn
noun/adjective. stone as a material
sarn
noun. stone (as a material)
sarn
noun. small stone
sarn ruin
place name. Sarn Ruin
Earlier name of S. Sarn Gebir in Lord of the Rings drafts from the 1940s (TI/366). Its initial element is sarn “stone”, but the meaning of its second element is unclear. Some possibilities were suggested by Roman Rausch (EE/2.39, 2.40).
sarn athrad
place name. Stony Ford, Ford of Stones
sarn gebir
place name. ?lone stone, Stand[?ing stones], [?Lime]stones
sern aranath
place name. King Stones
gondrafn
noun. hewn stone
gondram
noun. hewn stone
gonn
noun. great stone, rock
Sern in UT/463 is a misprint, see VT/42:11