See also: ъ, ь, Ѣ, and Ь

ѣ U+0463, ѣ
CYRILLIC SMALL LETTER YAT
Ѣ
[U+0462]
Cyrillic Ѥ
[U+0464]
The italic glyph is a distinctive ɪъ ligature.

Translingual

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Letter

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ѣ (upper case Ѣ)

  1. A letter of the Old Cyrillic script, called yat or yati.
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Russian

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 ѣ on Russian Wikipedia

Letter

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ѣ () (lower case, upper case Ѣ)

  1. (obsolete) Letter yat (in Russian: ять (jatʹ)).