The Tengwar script is an artificial script, one of several scripts created by J. R. R. Tolkien, the author of The Lord of the Rings. Within the fictional context of Middle-earth, the Tengwar were invented by the Elf Fëanor, and used first to write the Elven tongues Quenya and Telerin. Later a great number of Tolkien's constructed languages were written using the Tengwar, including Sindarin. Tolkien used Tengwar to write English: most of Tolkien's Tengwar samples are actually in English. Internal history and terminology According to J.R.R. Tolkien's The War of the Jewels, edited by his son Christopher Tolkien, at the time Fëanor created his script, he introduced a change in terminology. He called a letter, a written representation of a spoken phoneme (tengwë), a tengwa. Previously, any letter or symbol had been called a sarat (from *sar "incise"). The alphabet of Rúmil of Tirion, on which Fëanor supposedly based his own work, was known as Sarati. It later became known as "Tengwar of Rúmil". The plural of tengwa is tengwar, and this is the name by which Fëanor's writing system became known. Since, however, in commonly used modes, an individual tengwa was equivalent to a consonant, the term tengwar in the fiction became equivalent to "consonant sign", and the vowel signs were known as ómatehtar. By loan-translation, the tengwar became known as tîw (singular têw) in Sindarin, when they were introduced to Beleriand. The letters of the earlier alphabet native to Sindarin were called cirth (singular certh, probably from *kirte "cutting", and thus semantically analogous to Quenya sarat). This term was loaned into exilic Quenya as certa, plural certar. External history Precursors The sarati, a script developed by Tolkien in the late 1910s and described in Parma Eldalamberon 13, anticipates many features of the tengwar: vowel representation by diacritics (which is found in many tengwar varieties); different tengwar shapes; and a few correspondences between sound features and letter shape features (though inconsistent). Even closer to the tengwar is the Valmaric script, described in Parma Eldalamberon 14, which Tolkien used from about 1922 to 1925. It features many tengwar shapes, the inherent vowel found in some tengwar varieties, and the tables in the samples V12 and V13 show an arrangement that is very similar to one of the primary tengwar in the classical Quenya "mode". Jim Allan in his An Introduction to Elvish compared the tengwar with the Universal Alphabet