Elvish languages are a group of fictional languages created by J.R.R. Tolkien for his literary works, most notably The Lord of the Rings and The Silmarillion. These languages, such as Quenya and Sindarin, are rich in vocabulary and grammar, reflecting the culture and history of the Elves in Tolkien's universe. Tolkien, a philologist, designed these languages with great care, drawing inspiration from real-world languages like Finnish and Welsh. Elvish languages have gained popularity among fans, leading to a thriving community of enthusiasts who study and even converse in these beautiful tongues.