Reversed half H

Roman stela at the Gallo-Roman Museum of Lyon with a Latin inscription (CIL XIII 1853) including CꟵEREN‍Nꟾ (c(enturia) Herenni(i), "the centuria of Herennius").

Funeral altar at the Archeological Museum of Nîmes with a Latin inscription (CIL XII 3203) including PARTꟵENIUS (Parthenius).

Egyptian hieroglyph fence	Proto-Sinaitic ḥaṣr	Phoenician Heth	Greek Heta	Etruscan H	Latin H

It is derived from the right part of ⟨H⟩. It may or not be related to the characters ⊢ and ⊣ used by Aristophanes of Byzantium to represent the rough breathing and smooth breathing of Greek around 200 BC.

It represents the aspirate h or rough breathing. It is found at the beginning of words, and following c, p, and t, in words which have an original Greek χ (chi), φ (phi) or θ (theta).

The half H is found in Latin inscriptions of Gaul, particularly the areas of Lugdunum (Lyon) and Nemausus (Nîmes) in modern France. Of the variant forms of H found in inscriptions, the reversed half H is the only one commonly distinguished from the ordinary H in diplomatic transcriptions.

A few authors have considered the reversed half H to be a ligature of H with the preceding letter, but Corpus Inscriptionum Latinarum and catalogues of local inscriptions treat the reversed half H as a distinct letter. There are cases of clear PH, NTH, HI, HE, HR ligatures but, in others, there is visible space between Ꟶ and the previous and following letter.

The letter was introduced in Unicode 13 (March 2020).[1] While the inscriptions show only uppercase forms, a lowercase version has also been entered into Unicode to allow epigraphists to discuss words in appropriate cases. It is named "reversed" to make a difference with the previous half H ⟨Ⱶ⟩.

• Claudian letter Ⱶⱶ
• Heta (Ͱͱ)

Wikimedia Commons has media related to Ꟶ.

• West, Andrew; Everson, Michael (2019-03-25). "Proposal to encode Latin Letter Reversed Half H" (PDF). Retrieved 21 September 2022.