Home U+1680 to U+169F Ogham
Glyph for U+1690
Source: Noto Sans Ogham

U+1690 Ogham Letter Ailm

U+1690 was added to Unicode in version 3.0 (1999). It belongs to the block U+1680 to U+169F Ogham in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Ogham script.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+1690 behaves as Alphabetic regarding line breaks. It has type Other Letter for sentence and Alphabetic Letter for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

Ailm is the Irish name of the sixteenth letter of the Ogham alphabet, ᚐ. Its phonetic value is [a]. The original meaning of the name cannot be established with certainty. The Bríatharogam kennings all refer to the sound [a] and not to the meaning of the letter name, either as the sound of a "groan", or to the Irish vocative particle, á. Thurneysen suggests that Ailm, Beithe was influenced by Alpha, Beta. However, beithe is an Irish word, and there is no reason to consider ailm a sole, loaned letter name among the original feda; Thurneysen did not suggest this letter name involved such a borrowing. The word is attested once outside of the Ogham grammatical texts, in the poem "King Henry and the Hermit",

caine ailmi ardom-peitet

which translates to

Beautiful are the pines which make music for me.

This single reference is the reason ailm is sometimes associated with pines. However, the poem likely post-dates origins of the medieval tradition of arboreal glosses of the ogham letters, so is more probably influenced by this tradition than an independent source for the meaning of ailm.


System Representation
UTF-8 E1 9A 90
UTF-16 16 90
UTF-32 00 00 16 90
URL-Quoted %E1%9A%90
HTML hex reference ᚐ
Wrong windows-1252 Mojibake ᚐ


Complete Record

Property Value
Age 3.0 (1999)
Unicode 1 Name
Block Ogham
General Category Other Letter
Script Ogham
Bidirectional Category Left To Right
Combining Class Not Reordered
Decomposition Type None
Decomposition Mapping Glyph for U+1690 Ogham Letter Ailm
Simple Lowercase Mapping Glyph for U+1690 Ogham Letter Ailm
Lowercase Mapping Glyph for U+1690 Ogham Letter Ailm
Simple Uppercase Mapping Glyph for U+1690 Ogham Letter Ailm
Uppercase Mapping Glyph for U+1690 Ogham Letter Ailm
Simple Titlecase Mapping Glyph for U+1690 Ogham Letter Ailm
Titlecase Mapping Glyph for U+1690 Ogham Letter Ailm
Case Folding Glyph for U+1690 Ogham Letter Ailm
ASCII Hex Digit
Bidi Control
Bidi Mirrored
Composition Exclusion
Case Ignorable
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Full Composition Exclusion
Default Ignorable Code Point
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji Presentation
Extended Pictographic
FC NFKC Closure Glyph for U+1690 Ogham Letter Ailm
Grapheme Cluster Break Any
Grapheme Base
Grapheme Extend
Grapheme Link
Hex Digit
ID Continue
ID Start
IDS Binary Operator
IDS Trinary Operator and
ID_Compat_Math_Continue 0
ID_Compat_Math_Start 0
InCB None
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
Jamo Short Name
Join Control
Logical Order Exception
Noncharacter Code Point
NFC Quick Check Yes
NFD Quick Check Yes
NFKC Casefold Glyph for U+1690 Ogham Letter Ailm
NFKC Quick Check Yes
NFKC_SCF Glyph for U+1690 Ogham Letter Ailm
NFKD Quick Check Yes
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Prepended Concatenation Mark
Pattern Syntax
Pattern White Space
Quotation Mark
Regional Indicator
Sentence Break Other Letter
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Variation Selector
Word Break Alphabetic Letter
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD
Bidi Paired Bracket Glyph for U+1690 Ogham Letter Ailm
Bidi Paired Bracket Type None
East Asian Width Neutral
Hangul Syllable Type Not Applicable
ISO 10646 Comment
Joining Group No_Joining_Group
Joining Type Non Joining
Line Break Alphabetic
Numeric Type None
Numeric Value not a number
Simple Case Folding Glyph for U+1690 Ogham Letter Ailm
Script Extension
Vertical Orientation R