What 𛰘 means
It is one letter in Chinook writing.
At a 1890 meeting, missionaries described shorthand as easier to draw and adapt for local languages than the syllabary being discussed, a writing system where each mark represents a syllable. Le Jeune's early lessons used the adapted script for language teaching and prayers.
Rh is an added Chinook letter, not part of the original French inventory. A 2014 Unicode note on rendering explains that Duployan letters can connect cursively and change shape with their neighbors and font, so 𛰘 may look different inside a word.
Don't confuse it with
4Questions people ask
1Why does 𛰘 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type 𛰘
𛰘\1BC18Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.