U+A651 "ꙑ" Cyrillic Small Letter Yeru with Back Yer Unicode Character

U+A651 "ꙑ" Cyrillic Small Letter Yeru with Back Yer is a historical glyph used in certain early Cyrillic manuscripts, specifically representing a variant of the letter Yeru (Ї) that combines a front yer (ь) with a back yer (ъ) in a single ligature or digraph form. This character was employed in Old East Slavic and Church Slavonic texts to denote a distinct vowel sound, often a high, lax central or back vowel, and it appears in the Cyrillic Extended-B block of Unicode, which was added to support scholarly transcription and digital preservation of medieval Slavic writing. Its inclusion aids linguists and historians in accurately reproducing original orthography without resorting to approximate substitutions.

General Properties

Code Point	U+A651
Version Added	5.1
Name	Cyrillic Small Letter Yeru with Back Yer
Block	Cyrillic Extended-B
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	ꙑ
HTML Hex Encoding	ꙑ
UTF-8 Encoding	0xEA 0x99 0x91
UTF-16 Encoding	0xA651
UTF-32 Encoding	0x0000A651
C/C++/Java Escape	\ua651

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Simple Uppercase Code Point	"Ꙑ" U+A650 Cyrillic Capital Letter Yeru with Back Yer
Simple Titlecase Code Point	"Ꙑ" U+A650 Cyrillic Capital Letter Yeru with Back Yer
Uppercase Code Point	"Ꙑ" U+A650 Cyrillic Capital Letter Yeru with Back Yer
Titlecase Code Point	"Ꙑ" U+A650 Cyrillic Capital Letter Yeru with Back Yer
Cased	Yes
Changes When Casemapped	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
Script	Cyrillic
Script Extensions	Cyrillic
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower