Modifier Breve With Inverted Breve

It marks shortness in Teuthonista transcription.

For ꭛ in Teuthonista transcription, the mark follows a written vowel but does not attach to it. The Swiss Sprachatlas, a project that records Swiss German dialects, uses Teuthonista for detailed transcription.

The history of ꭛ runs through earlier phonetic alphabets: its notation tradition draws on Lepsius's 1855 alphabet and the Böhmer–Ascoli line. The Teuthonista journal formalized the system's name in 1924; a recognizable form appears in Heepe's 1928 publication.

Why does ꭛ have two readings?

The notation tradition determines its reading.

In Teuthonista, a꭛ marks short a; the cited example treats it as equivalent to ă, an a marked as short.

The 2006 Unified Tai Script proposal gives ꭛ another value: an open e sound, written /ɛ/ in the International Phonetic Alphabet, a system of symbols for speech sounds. Its Tai Daeng entry shows the long version as /ɛ:/.

What does ꭛ mean when someone sends it?

By itself, it does not identify a notation system.

A bare ꭛ is a technical text mark, not a universal reaction. Ask whether the sender means Teuthonista transcription or the Unified Tai proposal before assigning it a sound.