This character is a Other Letter and is mainly used in the Samaritan script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from right to left. When changing direction it is not mirrored. The word that U+080A forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Kaph (also spelled kaf) is the eleventh letter of the Semitic abjads, including Arabic kāfك, Aramaic kāp 𐡊, Hebrew kāp̄כ, Phoenician kāp 𐤊, and Syriac kāp̄ ܟ.
The Phoenician letter gave rise to the Greek kappa (Κ), Latin K, and Cyrillic К.
Representations
System
Representation (click value to copy)
Nº
2058
UTF-8
E0 A0 8A
UTF-16
08 0A
UTF-32
00 00 08 0A
URL-Quoted
%E0%A0%8A
HTML hex reference
ࠊ
Wrong windows-1252 Mojibake
à Š
Encoding: GB18030 (hex bytes)
81 31 B4 32
RFC 5137
\u'080A'
Bash and Zsh inside echo -e
\u080A
C and C++
\u080A
C#
\u080A
CSS
\00080A
Excel
=UNICHAR(2058)
Go
\u080A
JavaScript
\u080A
Modern JavaScript since ES6
\u{80a}
JSON
\u080A
Java
\u080A
Lua
\u{80A}
Matlab
char(2058)
Perl
"\x{80A}"
PHP
\u{80a}
PostgreSQL
U&'\080A'
PowerShell
`u{80A}
Python
\u080A
Ruby
\u{80a}
Rust
\u{80a}
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