U+1EFF "ỿ" Latin Small Letter Y with Loop Unicode Character

U+1EFF "ỿ" Latin Small Letter Y with Loop is a rare typographic variant used primarily in medieval Latin manuscripts to represent the phoneme /y/, particularly in contexts where scribes needed to distinguish it from other vowel sounds. This character features a small closed loop or ring attached to the descender of the standard Latin letter y, serving as a diacritical mark that likely indicated a specific phonetic quality or was a scribal abbreviation for certain Latin words. Its inclusion in Unicode supports the digital encoding of historical texts, allowing scholars to accurately preserve and study the orthographic nuances of early written documents.

General Properties

Code Point	U+1EFF
Version Added	5.1
Name	Latin Small Letter Y with Loop
Block	Latin Extended Additional
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	ỿ
HTML Hex Encoding	ỿ
UTF-8 Encoding	0xE1 0xBB 0xBF
UTF-16 Encoding	0x1EFF
UTF-32 Encoding	0x00001EFF
C/C++/Java Escape	\u1eff

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	"Ỿ" U+1EFE Latin Capital Letter Y with Loop
Simple Titlecase Code Point	"Ỿ" U+1EFE Latin Capital Letter Y with Loop
Uppercase Code Point	"Ỿ" U+1EFE Latin Capital Letter Y with Loop
Titlecase Code Point	"Ỿ" U+1EFE Latin Capital Letter Y with Loop
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