This character is a Other Letter and is mainly used in the Ahom 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. U+1170E offers a line break opportunity at its position depending on the further context. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
The Ahom script or Tai Ahom Script is an abugida that is used to write the Ahom language, a dormant Tai language undergoing revival spoken by the Ahom people till the late 18th-century, who established the Ahom kingdom and ruled the eastern part of the Brahmaputra valley between the 13th and the 18th centuries. The old Ahom language today survives in the numerous manuscripts written in this script currently in institutional and private possession.
Representations
System
Representation (click value to copy)
NΒΊ
71438
UTF-8
F0 91 9C 8E
UTF-16
D8 05 DF 0E
UTF-32
00 01 17 0E
URL-Quoted
%F0%91%9C%8E
HTML hex reference
𑜎
Wrong windows-1252 Mojibake
Γ°βΕΕ½
Encoding: GB18030 (hex bytes)
90 34 D7 32
RFC 5137
\u'1170E'
Bash and Zsh inside echo -e
\U0001170E
C and C++
\U0001170E
C#
\U0001170E
CSS
\01170E
Excel
=UNICHAR(71438)
Go
\U0001170E
JavaScript
\uD805\uDF0E
Modern JavaScript since ES6
\u{1170e}
JSON
\uD805\uDF0E
Java
\uD805\uDF0E
Lua
\u{1170E}
Matlab
char(71438)
Perl
"\x{1170E}"
PHP
\u{1170e}
PostgreSQL
U&'\+01170E'
PowerShell
`u{1170E}
Python
\U0001170E
Ruby
\u{1170e}
Rust
\u{1170e}
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