Yn

Yn (Ꙟ ꙟ) is an archaic Cyrillic letter. It was an innovation entirely unique to the Romanian Cyrillic alphabet, not appearing in any other Cyrillic alphabet. It was derived from the Cyrillic glyph big yus.^[1]

Writing systemCyrillic

TypeAlphabetic

Language of originRomanian Cyrillic

Sound values[ɨn], [ɨm], [ɨ]

Quick facts Usage, Writing system ...

Yn
Ꙟ ꙟ
Usage
Writing system	Cyrillic
Type	Alphabetic
Language of origin	Romanian Cyrillic
Sound values	[ɨn], [ɨm], [ɨ]
In Unicode	U+A65E, U+A65F
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.

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It was used in the Romanian Cyrillic alphabet, where it represented the sounds [ɨn], [ɨm], and [ɨ] at the beginning of words.^[2] In the modern Romanian alphabet it is replaced by ⟨în⟩, ⟨îm⟩, or ⟨î⟩.

It was used interchangeably with big yus up until the years 1683-1688 when it began to only be used in word initial position.^[1]