This character is a Other Letter and is mainly used in the Ogham script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+168F forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Ruis (ᚏ) is the fifteenth letter of the Ogham alphabet, derived from ruise "red" or "reddening". The kennings refer to the reddening of the face caused by intense emotion, and medieval glossators also refer to the practice of reddening the cheeks with the juice of plants. Its Proto-Indo-European root was *h₁reudʰ- 'red'. Its phonetic value is [r].
Representations
System
Representation (click value to copy)
Nº
5775
UTF-8
E1 9A 8F
UTF-16
16 8F
UTF-32
00 00 16 8F
URL-Quoted
%E1%9A%8F
HTML hex reference
ᚏ
Wrong windows-1252 Mojibake
áš
Encoding: GB18030 (hex bytes)
81 34 AD 39
RFC 5137
\u'168F'
Bash and Zsh inside echo -e
\u168F
C and C++
\u168F
C#
\u168F
CSS
\00168F
Excel
=UNICHAR(5775)
Go
\u168F
JavaScript
\u168F
Modern JavaScript since ES6
\u{168f}
JSON
\u168F
Java
\u168F
Lua
\u{168F}
Matlab
char(5775)
Perl
"\x{168F}"
PHP
\u{168f}
PostgreSQL
U&'\168F'
PowerShell
`u{168F}
Python
\u168F
Ruby
\u{168f}
Rust
\u{168f}
Click the star button next to each label to set this representation as favorite or remove it from the favorites. Favorites will be shown initially. (Favorites are stored locally on your computer and never sent over the internet.)