J.R.R. Tolkien created the Tengwar writing system for languages including Quenya and Sindarin. In Middle-earth, the script is attributed mainly to the Elf Fëanor, while Tolkien designed its forms and used it to write several fictional languages.
Tengwar is an abugida-like script in which consonant signs are central and vowel marks, called tehtar, can be placed above or below them. Its appearance varies according to the language and writing mode being used. This flexibility helped Tolkien present different linguistic traditions within his mythology.
The script appears in Tolkien’s illustrations and in inscriptions associated with Middle-earth. The One Ring inscription is commonly displayed in Tengwar, although its language is the Black Speech of Mordor rather than Quenya or Sindarin.
Tengwar is often confused with Cirth, another Tolkien-created script. Cirth consists mainly of angular runes and is strongly associated with the Sindar and the dwarves. Sarati is an earlier writing system in Tolkien’s invented linguistic history, not the best-known script for the later Elvish languages.