The earth; earth; clay.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (noun) (n.) (noun)

Usage examples:

He could speak, read and write Lingua Terra
- Oomphel in the Sky by Henry Beam Piper
He has just come from Terra and has never been on Simonides before.
- Man of Many Minds by E. Everett Evans
Here the terra cotta pipes are about eight inches in diameter.
- A History of Art in Chaldæa & Assyria, v. 1 by Georges Perrot Charles Chipiez