U+0314 "̔" Combining Reversed Comma Above Unicode Character

U+0314 "̔" Combining Reversed Comma Above is a diacritical mark used primarily in the field of linguistics and classical scholarship to indicate a rough breathing or aspiration on a vowel or letter, functioning as a typographic counterpart to the regular combining comma above. It is designed to combine with a preceding base character, appearing above it as a small reversed apostrophe or comma, and is most commonly applied in transliterations of Ancient Greek, where it denotes the presence of an initial /h/ sound that would otherwise be omitted. Unlike its smoother counterpart, the smooth breathing mark (U+0313), the reversed comma above signifies a pronounced aspiration, making it an essential tool for precise phonetic and historical representation in academic texts.