U+A666 "Ꙧ" Cyrillic Capital Letter Soft Em Unicode Character

Unicode Version 17.0

U+A666 "Ꙧ" Cyrillic Capital Letter Soft Em is one of the Cyrillic Extended-B block characters, used historically in early Cyrillic alphabets to represent a palatalized or "soft" version of the sound /m/, typically occurring before front vowels or as part of certain scribal traditions in Old Church Slavonic and early East Slavic manuscripts. This letter features a distinctive diacritic-like hook or tail on its right side to indicate the softening, and it belongs to a set of rare, specialized glyphs that were part of efforts in the 16th and 17th centuries to regularize orthography, though it is no longer used in any modern Cyrillic-based alphabet. Its inclusion in Unicode ensures that scholars, linguists, and digital archivists can accurately represent and preserve these historically important textual artifacts.

General Properties

Code Point U+A666
Version Added 5.1
Name Cyrillic Capital Letter Soft Em
Block Cyrillic Extended-B
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right

Encodings

HTML Decimal Encoding Ꙧ
HTML Hex Encoding Ꙧ
UTF-8 Encoding 0xEA 0x99 0xA6
UTF-16 Encoding 0xA666
UTF-32 Encoding 0x0000A666
C/C++/Java Escape \ua666

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
Uppercase Yes
Simple Lowercase Code Point "ꙧ" U+A667 Cyrillic Small Letter Soft Em
Lowercase Code Point "ꙧ" U+A667 Cyrillic Small Letter Soft Em
Simple Case Folding "ꙧ" U+A667 Cyrillic Small Letter Soft Em
Case Folding "ꙧ" U+A667 Cyrillic Small Letter Soft Em
Cased Yes
Changes When Casefolded Yes
Changes When Casemapped Yes
Changes When Lowercased Yes
Changes When NFKC Casefolded Yes
NFKC Casefold "ꙧ" U+A667 Cyrillic Small Letter Soft Em
NFKC Simple Casefold "ꙧ" U+A667 Cyrillic Small Letter Soft Em
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 Upper