U+1F21 "ἡ" Greek Small Letter Eta with Dasia Unicode Character

U+1F21 "ἡ" Greek Small Letter Eta with Dasia is a precomposed form of the Greek letter eta (ἡ) combined with a dasia, which is the rough breathing mark in ancient Greek indicating an initial /h/ sound. This character is part of the Greek Extended block and is used primarily in ancient Greek texts to represent the word for "the" in its feminine nominative singular form, as well as the feminine relative pronoun. Its inclusion in Unicode ensures accurate representation and processing of classical Greek script, preserving the nuanced diacritical system that is essential for scholarly work, digital typography, and historical linguistic studies.