What 𐋡 means
It means one. This is a numeral sign, not a letter.
Coptic is Egypt’s historic language, written with a Greek-based script. An epact links the Moon’s cycle to the sun-based calendar year.
How do Coptic epact numerals work?
Add the signs’ values, largest first. For example, 𐋪𐋡 means 11 (10 + 1); there is no zero.
Why did people use this sign?
They made records quicker. The system arose in the 10th century as Arabic took over Egyptian administration; a Sinai manuscript from the late 10th or early 11th century uses it to number pages.
Egyptian Christians devised it, but Muslims and Jews also used it in Arabic and Judeo-Arabic records. The sign identifies the notation, not a writer’s faith or language.
Don't confuse it with
4Questions people ask
1Why does 𐋡 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 𐋡
𐋡\102E1Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.