O-hook (è é; italics: <span style="font-family: times, Times New Roman, serif; font-size: larger">è é</span>) is a letter of the Cyrillic script. It is derived from the initial form of the Arabic letter hÃÂþ, . Its form bears some similarities to the Greek letter Theta (àø/) and Latin letter Q. In the Unicode text-encoding standard, this letter is called "Abkhazian Ha".
Its ISO 9 Romanization is the Latin letter O with grave accent (àò). In English, O-hook is commonly romanized using the Latin letter O with dot below (á» á»Â).
O-hook is used in the Cyrillic alphabet of the Abkhaz language where it represents the labial-palatal approximant , the sound of in French "" (). It is placed between ë and àin the Abkhaz alphabet.