The bay north of Dol Amroth in early maps of Gondor from the 1940s (TI/312, WR/434), unnamed in the maps published in The Lord of the Rings. The name is similar to N. hobas “harbourage” and ᴱQ. kópas “harbour”. It was probably derived from the root ᴹ√KOP, a (rejected) variant of ᴹ√KHOP > hobas from The Etymologies of the 1930s (Ety/KOP, Ety/KHOP). See the entry on ᴹ√KHOP for details.
Noldorin
lhorn
adjective. asleep
lhorn
noun. haven, quiet water, anchorage, harbour
lhorn
noun. quiet water
lhorn
noun. anchorage, harbour
lorn
noun. haven
cirban
noun. haven
cirban
noun. haven
cobas
place name. Haven
hûb
noun. haven, harbour, small land-locked bay
nen
noun. water (used of a lake, pool or lesser river)
nen
noun. waterland
nen
noun. water
An adjective appearing as N. lhorn “asleep” in The Etymologies of the 1930s, cognate to ᴹQ. lorna, derived from the root ᴹ√LOR “sleep” (EtyAC/LOS). Tolkien deleted this form when he revised the root to ᴹ√LOS.
Neo-Sindarin: I’d restore this word as ᴺS. lorn “asleep”, since I retain the connection between the root √LOR and sleep; see the entry on √(O)LOR for further discussion.