Quenya is the language J.R.R. Tolkien created as the principal language of the high elves. Within Tolkien’s fictional history, it was associated especially with the Noldor and other Elves connected with Valinor.
Tolkien designed Quenya with substantial attention to sound, grammar, and historical development. Its structure was influenced by languages he studied or admired, including Finnish, Greek, and Latin, though Quenya is not simply a translation or direct copy of any of them.
Sindarin is the main Elvish language of many characters in The Lord of the Rings and is a separate language from Quenya. The two are related in Tolkien’s invented linguistic history, much as related languages can develop from a common ancestor.
Quenya appears in names, poems, songs, and formal expressions throughout Tolkien’s legendarium. The name of the sword Narsil and the title Elessar are examples of Tolkien’s broader use of invented languages to give Middle-earth historical depth.