O-hook

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O-hook is a letter of the Cyrillic script used in the Abkhaz language. It is derived from the initial form of the Arabic letter hāʾ (هـ) and its shape resembles Theta (Θ/θ) and the Latin letter Q. In Unicode it is named "Abkhazian Ha." For romanization, ISO 9 renders it as Ò (ò), and in English it is often written as O with a dot below (Ọ).

In Abkhaz, O-hook represents the labial-palatal approximant /ɥ/, the sound of “ui” in the French word huit (pronounced [ɥi]). In the Abkhaz alphabet, it sits between Ы and Џ.