Arabic Mathematical Initial Meem

Its role depends on the notation; one medieval use was māl.

𞸬 is a math-specific meem form based on the Arabic letter mīm (م). “Initial” names the shape used at the start of a connected Arabic word; here it is encoded as its own mathematical character. In a 1471 example by Ibn Ghāzī, mīm above a number abbreviates māl (مال), an Arabic word for “wealth” or “property” that names the square of the unknown quantity being solved for.

That is a local reading, not a fixed value for every formula. The math alphabet treats letter style as part of the symbol, not as decoration. Maghrebi algebraic symbolism is attested by the late 12th century and later served as a calculation aid: mathematicians worked problems on a reusable dustboard, then explained results in prose. Arabic- and Persian-script mathematics also has local symbol choices, so context matters.

Why doesn't it connect to neighboring Arabic letters?

Math symbols in this alphabet keep a fixed encoded form.

Ordinary Arabic letters change shape as they join a word; this mathematical character does not. It remains in the initial meem form even inside a formula. For ordinary Arabic text, use the regular letter meem (م), whose character identity is different.