J.R.R. Tolkien created several artificial languages for his Middle-earth legendarium, most notably the Elvish languages Quenya and Sindarin. These languages were designed with intricate grammar, vocabulary, and phonology, influenced by real-world languages like Finnish for Quenya and Welsh for Sindarin. Quenya, often called High-elven, was the ancient and formal language used by the Ñoldor and Vanyar Elves, often reserved for ceremonial and written purposes. Sindarin, the language of the Grey Elves or Sindar, was more commonly spoken in Middle-earth during the events of The Lord of the Rings. Tolkien's Elvish languages have a family tree stemming from a common ancestor called Primitive Quendian. Besides Quenya and Sindarin, there are other Elvish dialects like Telerin, Nandorin, and Avarin, though less fully developed. These languages are renowned for their cultural depth, as Tolkien’s stories grew out of his linguistic creations, blending these constructed tongues with rich mythologies and histories.