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Arwen's sword is called Hadhafang. It is the curved blade carried by the character played by Liv Tyler in The Fellowship of the Ring, especially recognizable in the Bruinen ford scene. To understand its story, it is worth separating two things: Arwen belongs to the work of J. R. R. Tolkien, but this sword and his connection with it were developed for the films.
Does Hadhafang appear in Tolkien's books?
Hadhafang does not appear as Arwen's sword in the novel. Its design and the family history attributed to the weapon are part of the film adaptation. The name, however, has a history in Tolkien's linguistic work: it is not a word created from scratch by the film team.
The distinction avoids confusing a piece of Peter Jackson's visual universe with an object described by Tolkien in the story. A replica can represent the weapon from the movie without turning its movie story into an episode from the books.

Arwen, Elrond and the story of the sword in the cinema
In The Fellowship of the Ring, Arwen protects Frodo during his flight from the Nazgûl and draws Hadhafang in front of them at the ford. Elrond also carries the sword in the prologue, during the battle of the Last Alliance. That visual detail connects father and daughter.
The elaborate background for the films presents Hadhafang as a family heirloom associated with Idril, mother of Eärendil. From him it would go to Elrond and then to Arwen. This genealogy of the weapon should be read as part of the cinematic construction, not as a story of the sword told in The Lord of the Rings.

In the book, the flight to the ford has another development: Glorfindel helps Frodo and lends him his horse, Asfaloth. Arwen does not star in that rescue. Her story with Aragorn is expanded upon in Appendix A, where her choice of mortal destiny takes center stage. She is the daughter of Elrond and Celebrán, and sister of Elladan and Elrohir.
What does Hadhafang mean and what does its inscription say?
The name is usually interpreted as "cleaver of multitudes", from the English translation throng-cleaver. This idea is more precise than simply understanding it as a "crowd blade": it refers to a sword capable of cutting through an enemy crowd.
The inscription on the sheet is written in a form of Sindarin prepared for the film and written with tengwar. Sindarin is the language; tengwar is the writing system. Therefore, describing it only as "runes in Sindarin" misses a useful distinction for recognizing the alphabets of Middle Earth.
Its meaning can be expressed in Spanish like this: the blade is called Hadhafang and is presented as a noble defense against the enemy, intended for a noble lady. The reference to that lady also plays with Arwen's name. This explanation summarizes the meaning of the inscription without presenting it as a phrase written by Tolkien for his character.

How to recognize the Hadhafang layout
Its visual identity is based on a curved single-edged blade, a stylized handle and the absence of a cross-shaped transverse guard. The inscriptions and ornamental details reinforce the elvish aspect. These characteristics explain why it is distinguished from the straight swords with which it usually shares a display.

Photographs of replicas help to observe that silhouette, but they do not alone prove that a piece is officially licensed, sharpened, or suitable for combat. There is also no measurement or material that can be attributed to all versions: these data depend on the model.
Arwen's sword as a collector's item
The original article proposed the exhibition on a tabletop pedestal. It is an option that allows you to appreciate the curve of the blade, although it is not necessarily better than a wall support: the presentation depends on the space and the compatibility of the support with the piece.

If you want to see other interpretations of the weapons of the saga, you can explore the collection of swords from The Lord of the Rings. Review the license, format and indicated use in each file, without automatically transferring the features from one version to another.
To place Hadhafang within a broader thematic collection, you will find other objects in The Lord of the Rings and The Hobbit. And if you are interested in how cinema constructs the identity of its characters through their weapons, the collection of movie swords offers more visual references.
Sources and references
- Ryszard Derdzinski: Sword Inscriptions, section dedicated to the sword of Arwen. Analysis of the inscription and documentation of its cinematographic background.
- Tolkien Gateway: Hadhafang. Synthesis on the film design and the origin of the name, with bibliographical references.
- Tolkien Gateway: Arwen. Family context and choice of mortal destiny.
- Glorfindel: literary character and film adaptation. Context of the character change in Frodo's escape.