Is Elvish a complete language?
Of all the languages Tolkien created, two have enough words and grammar to be considered functional. They’re not “complete,” in the sense that they lack niche words, like “flambe” or “hydro nucleic acid,” but people do speak and write in them. These languages are both Elvish in origin: Quenya and Sindarin.
What language do the noldor speak?
Quenya
Sindarin is the language usually referred to as the Elf-Tongue or Elven-Tongue in The Lord of the Rings. When the Quenya-speaking Noldor returned to Middle-earth, they adopted the Sindarin language.
Does Arwen speak Sindarin or Quenya?

They spoke Sindarin… it is an elf language that Tolkien created.
What is Quenya based on?
Finnish
Background. Quenya was influenced specifically by Finnish, which is an agglutinative language; grammatical inspiration also comes from Latin and Greek. The phonology is also based on Finnish, and to a lesser extent Latin, Italian and Spanish.
Are there real elves?

From a scientific viewpoint, elves are not considered objectively real. However, elves have in many times and places been believed to be real beings.
Can Legolas speak Quenya?
Legolas definitely speaks Sindarin. I don’t think it’s likely he spoke Quenya. Quenya was mainly only spoken by the Noldorin elves, especially in the First Age. As Legolas isn’t Noldorin, and his grandfather Oropher held a strong anti-Noldor grudge until he died, I’d doubt that anyone would have taught Legolas Quenya.
What type of ELF is Legolas?
Sindarin Elf
Who is Legolas? Legolas is a Sindarin Elf from the Woodland Realm of Northern Mirkwood. His father, Thranduil, is the King of the Silvan Elves living in that realm, making Legolas the Prince of Mirkwood.
Is Legolas Sindarin or Quenya?
Legolas was a Sindarin Elf who was part of the Fellowship of the Ring in the Third Age. Son of the Elvenking Thranduil of Mirkwood, Legolas was Mirkwood’s prince, a messenger, and a master archer.
Do Icelanders really believe in elves?
Yes, elves. Fifty-four percent of Icelanders either believe in them or say it’s possible they exist. Roads have been diverted around boulders where the elves, or álfar in Icelandic, supposedly reside.