⋄ Osforod >> Fornobel (TI:125,147)
This name appears later as Fornost or Fornost Erain ’Norbury of the Kings’ (LotRVI ch.7); ’Norbury’ from Old English north-burg ’north-(fortified) town’ (RC:774).
The earlier names clearly mean the same, with slightly different elements. The former contains N. ost ’city, town with wall around’ (OS-) and forod ’north’ (PHOR-), the medial cluster -stf- being simplified to -sf-.
The latter variant contains forn ’right or north’ (PHOR-, PE17:80) and lenited gobel ’walled house or village, ’town” (PEL(ES)-).