Thellamie

From Tolkien Gateway

Thellamie was the name of a country in the poem Errantry by Bilbo Baggins.[1] The name was not actually Elvish but an invention in the Elvish style.[2]

It is unknown if Thellamie referred to an actual country in Middle-earth, or if it was just an invention by the poet.

References

Legendary Locations in Arda
Islands:  Meneltarma
Mountains:  Astulat · Mountains of the Moon · Merlock Mountains
 Regions:  Aerie · Belmarie · Fantasie · Last Desert · Sindanórie · Thellamie · Tode
Rivers:  Derrilyn
Other:  Caves of the Forgotten · Gorbelgod