U+A7C1 "ꟁ" Latin Small Letter Old Polish O Unicode Character

U+A7C1 "ꟁ" Latin Small Letter Old Polish O is a historical typographic glyph used to represent a specific nasal vowel sound found in the Old Polish language, similar to the modern Polish letter "ą" but with a distinct orthographic shape. Included in the Latin Extended-D block as part of ongoing efforts to support early medieval and medieval European scripts, this character helps scholars accurately transcribe and digitize ancient Polish manuscripts. Its addition to Unicode ensures that researchers can faithfully preserve and study the phonetic nuances of early written Polish without relying on modern substitutions or approximations.

General Properties

Code Point	U+A7C1
Version Added	14.0
Name	Latin Small Letter Old Polish O
Block	Latin Extended-D
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	ꟁ
HTML Hex Encoding	ꟁ
UTF-8 Encoding	0xEA 0x9F 0x81
UTF-16 Encoding	0xA7C1
UTF-32 Encoding	0x0000A7C1
C/C++/Java Escape	\ua7c1

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	"Ꟁ" U+A7C0 Latin Capital Letter Old Polish O
Simple Titlecase Code Point	"Ꟁ" U+A7C0 Latin Capital Letter Old Polish O
Uppercase Code Point	"Ꟁ" U+A7C0 Latin Capital Letter Old Polish O
Titlecase Code Point	"Ꟁ" U+A7C0 Latin Capital Letter Old Polish O
Cased	Yes
Changes When Casemapped	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
Script	Latin
Script Extensions	Latin
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