Izhorian has nine vowel letters including the characteristic Baltic Finnic vowels Ä, Ö, Ü, and Õ (back unrounded mid vowel). These front and back vowels reflect the close relationship of Izhorian with Estonian and other Baltic Finnic languages.
The Izhorian vowel system has been documented by scholars at the University of Helsinki [3] and ILI RAS [2], who have studied the language's phonological features including vowel harmony remnants and dialectal vowel variations. Izhorian's vowel system differs in important ways from both Finnish (which has strict vowel harmony) and Estonian (which lost vowel harmony) — placing it in an intermediate historical position within Baltic Finnic development.
The Izhorian consonant system uses 17 consonant letters in its Latin orthography. The consonant inventory includes Š (sh-sound) and Ž (zh-sound), which distinguish Izhorian from Finnish (which lacks these letters) and align it with Estonian orthographic conventions.
Izhorian consonants exhibit gradation patterns inherited from Proto-Finnic [2] — the systematic alternation of consonants between strong and weak grades. Documentation of Izhorian consonant phonology is part of the ongoing linguistic fieldwork conducted by ILI RAS researchers and international Finno-Ugric linguists working to record the language before the last native speakers are gone.
The six special characters of the Izhorian (Ingrian) alphabet are Ä, Ö, Ü, Õ, Š, Ž. These letters connect Izhorian visually and phonologically to Estonian, as both languages belong to the southeastern Baltic Finnic group and share these distinctive vowel and consonant characters.
The Izhorian Latin orthography used in modern documentation is closely modelled on Estonian conventions, making it accessible for Estonian-speaking Finno-Ugrists. ELAR [1] archival materials use this standardised orthography in their transcriptions of recorded Izhorian speech, ensuring consistency across documentation materials.
Izhorian uses Arabic numerals (0–9). The native Izhorian number words: nol (0), yks (1), kaks (2), kolmõ (3), nellä (4), viis (5), kuusi (6), seičemä (7), kaheksa (8), üheksä (9).
The Izhorian number words are cognate with those in Estonian and Finnish, clearly reflecting the shared Uralic heritage of the Baltic Finnic language family. The University of Helsinki's Finno-Ugric studies [3] have used comparative analysis of number words across Finnic languages as one tool for reconstructing the common ancestor language Proto-Finnic.
A complete view of all 26 Izhorian letters in alphabetical order. These are the same letters used in the Ingrian orthography — Izhorian and Ingrian are two names for the same critically endangered Baltic Finnic language of the Leningrad Oblast.
The documentation of the complete Izhorian alphabet and associated language materials is preserved in ELAR [1] archives. ILI RAS [2] and the University of Helsinki [3] maintain ongoing research traditions that keep the Izhorian language visible in Uralic linguistic scholarship.
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