Combining Devanagari Sign Avagraha

It guides the melody of Sāmavedic chant, not speech sounds.

The Sāmaveda is one of the Vedas, a collection of sacred hymns; Sāmagāna is its sung recitation. A 2007 proposal to add this sign to Unicode—the shared standard for text characters—describes three readings: atikrama, a skipped tone; vinata, a named melodic pattern; and namana, a bend or sinking in the tune. The notation tradition determines which reading applies. The mark lets written chant show melodic changes, such as skips, prolongations, and modulations, that a singer might otherwise carry orally.

The earliest dated printed example cited for ꣱ is a Devanagari edition of the Sāmaveda from 1871–75; the same discussion also cites manuscripts from the Ranayaniya Sāmaveda tradition. A 2015 Unicode note compares its S-like form in Devanagari, Bengali, and Tulu-Tigalari sources, while identifying Bengali's ordinary avagraha as a different sign.

Is ꣱ the regular Devanagari avagraha or a Vedic mark?

It is a Vedic chant mark; the regular avagraha is ऽ.

In Sanskrit spelling, ऽ marks an initial a elided when sounds meet at a word boundary through sandhi. An inscription dated 834–35 is cited as the earliest known occurrence of the broader avagraha sign; it documents that orthographic tradition, not the first use of ꣱.

Why does ꣱ disappear or move?

Font support and text shaping determine its position.

In text, place ꣱ after the Devanagari syllable it marks; layout should position it above the main character. If a font lacks the sign or the layout engine cannot attach it there, it may appear blank, float, or sit over the wrong part of the syllable.