The Dido Alphabet

Dido is an older name for the Northeast Caucasian language now more commonly called Tsez. It is spoken by approximately 6,000–15,000 people in the Tsunta District of western Dagestan, Russia. The language is classified as endangered.

The name "Dido" came from the historic name for the Tsunta region in older Russian and Western literature. Today, both names appear in academic and general sources, though "Tsez" is increasingly preferred in modern linguistics as it reflects the speakers' own name for their language.

Yes — Dido and Tsez are two names for the same language. They share a single ISO 639-3 code: ddo. The same Cyrillic alphabet, the same phonological system, and the same grammar — just two different names used in different traditions.

"Dido" derives from the historic name of the Tsunta District region and appears in older Russian-language linguistic scholarship. "Tsez" is what the speakers themselves call their language (цез). Modern linguistic convention increasingly uses "Tsez" to respect speaker self-identification, but "Dido" remains in circulation in older references.

The Didoic branch is an alternative name for the Tsezic branch of the Northeast Caucasian language family ^[1]. The branch is named after Dido (Tsez) — the most widely studied language within it.

The Didoic/Tsezic branch includes five languages: Tsez (Dido), Hinukh, Bezhta, Hunzib, and Khwarshi. All five are spoken in the Tsunta District of western Dagestan and share a common ancestor distinct from the Lezgic and Avar-Andic branches.

Dido (Tsez) belongs to the Tsezic (Didoic) branch of the Northeast Caucasian (Nakh-Dagestanian) language family ^[1]. The Northeast Caucasian family is entirely indigenous to the Caucasus region with no established relationship to any other language family.

Within the Northeast Caucasian family, the Tsezic branch is distinct from the Lezgic branch (Tabasaran, Agul, Lezgi — spoken in southern Dagestan) and from the large Avar-Andic branch dominant in central Dagestan.

Dido (Tsez) is written in a modified Cyrillic script ^[2]. The script includes 5 vowels and 30 consonant positions, with the palochka (Ӏ, U+04C0) marking ejective consonants and digraphs with ъ and ь for uvular and pharyngeal sounds.

Before Soviet-era standardization, Dido/Tsez had no established orthography. The Cyrillic-based writing system was developed in the 20th century, though literacy rates in the language remain much lower than in Russian.

Dido (Tsez) is classified as endangered by linguists and language researchers. With only 6,000–15,000 speakers and no official status in Dagestan, the language faces significant pressure from Russian and Avar.

Most speakers are bilingual in Russian, and Avar serves as a regional lingua franca across western Dagestan. Educational and media support for Dido/Tsez is very limited, which affects intergenerational transmission of the language.

Dido (Tsez) shares the phonological complexity typical of Northeast Caucasian languages ^[1]. Key features include: ejective consonants (КӀ, ТӀ, ПӀ, ЦӀ, ЧӀ, КкӀ) produced with glottal closure; uvular consonants (Хъ, Кк) produced at the uvula; and pharyngeal fricatives (Гь, Хь) produced deep in the pharynx.

The combination of ejectives, uvulars, and pharyngeals alongside a compact 5-vowel inventory is a hallmark of the Northeast Caucasian family. English and most European languages lack all three of these sound types entirely.

The Tsezic (Didoic) branch includes five closely related languages: Tsez (Dido), Hinukh, Bezhta, Hunzib, and Khwarshi ^[1]. All five languages are spoken in the Tsunta District of western Dagestan, Russia.

The five Tsezic languages form a tight geographic cluster and share many structural features. They are distinct from the Lezgic languages of southern Dagestan (Tabasaran, Agul, Lezgi) and from the Avar-Andic languages that dominate the wider Dagestan region.