Cyrillic Subscript Small Letter Dze

It is Cyrillic Dze lowered into a transcription mark. Its reading depends on the notation around it, not on a fixed sound.

In some Cyrillic phonological systems, a subscript marks an archiphoneme: one category for sounds whose contrast disappears in a particular position. Superscripts can instead mark fine pronunciation detail. A 1905 Serbian dialect study used subscript and superscript letters for stronger and weaker vowel values; a 2007 Bulgarian phonetics study shows 𞁩 among its archiphoneme signs.