U+1F40 "ὀ" Greek Small Letter Omicron with Psili Unicode Character

U+1F40 "ὀ" Greek Small Letter Omicron with Psili is a precomposed character used in the polytonic orthography of the Greek language, where it represents the letter omicron marked with a psili, or smooth breathing mark, indicating that the vowel is pronounced without a preceding aspirated "h" sound. This character is part of the Greek Extended block of Unicode and is historically employed in ancient and liturgical Greek texts to denote the initial vowel in words where no rough breathing is present. It differs from the standard lowercase omicron by its specific diacritical placement, which helps convey accurate pronunciation and grammatical meaning in scholarly editions.