U+1F20 "ἠ" Greek Small Letter Eta with Psili Unicode Character

U+1F20 "ἠ" Greek Small Letter Eta with Psili is a historic Greek letterform used in ancient polytonic orthography, combining the vowel eta (η) with a psili, or smooth breathing mark, which indicates the absence of an initial aspiration sound. This character typically appears at the beginning of a word in classical and medieval Greek texts, where the smooth breathing sign (resembling a small comma-like curve) sits above the letter. It represents a specific phonetic nuance in the Greek language, distinguishing it from its rough breathing counterpart, and is still employed in scholarly editions, liturgical writings, and linguistic studies today.

General Properties

Code Point	U+1F20
Version Added	1.1
Name	Greek Small Letter Eta with Psili
Block	Greek Extended
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Canonical
Decomposition Mapping	"η" U+03B7 Greek Small Letter Eta "̓" U+0313 Combining Comma Above

Encodings

HTML Decimal Encoding	ἠ
HTML Hex Encoding	ἠ
UTF-8 Encoding	0xE1 0xBC 0xA0
UTF-16 Encoding	0x1F20
UTF-32 Encoding	0x00001F20
C/C++/Java Escape	\u1f20

Unicode Properties

NFC Quick Check	Yes
NFKC Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Simple Uppercase Code Point	"Ἠ" U+1F28 Greek Capital Letter Eta with Psili
Simple Titlecase Code Point	"Ἠ" U+1F28 Greek Capital Letter Eta with Psili
Uppercase Code Point	"Ἠ" U+1F28 Greek Capital Letter Eta with Psili
Titlecase Code Point	"Ἠ" U+1F28 Greek Capital Letter Eta with Psili
Cased	Yes
Changes When Casemapped	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
Script	Greek
Script Extensions	Greek
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