What 𮡽 means
It appears in the name of a hunting arrow.
A classical list places 𮡽矢 among arrows for close shooting and hunting. A parallel version of the list reads 鍭矢; older dictionaries describe 鍭 as an arrow with a metal point.
The old Chinese regional glossary 方言 records 鍭 as a word for “arrow” in Jianghuai (between the Yangtze and Huai rivers); it gives 矢 farther east and 箭 in the west.
Why might 𮡽 show as a box?
Your font may not include this particular glyph.
An empty box can be the font’s replacement for a glyph it cannot draw. The text can still contain 𮡽; a font that includes this character can display it.
Questions people ask
1Why does 𮡽 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 𮡽
𮡽\2E87DCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.