That's what I figured on Laguna, and I looked through as much of the Quenya language as a could, and was unable to find a word for lagoon.

Drake -- unknown origin 'dragon'; Quenya fenume, amlug, angulooke, looke 'dragon', so any of the following would do as a name: Fenumo(n), Amlugon, Angulooko(n), Looko(n)

--Eruntalon