U+0389 GREEK CAPITAL LETTER ETA WITH TONOS

The Unicode character U+0389, officially named GREEK CAPITAL LETTER ETA WITH TONOS, was introduced in Unicode version 1.1. It is part of the Greek block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as GREEK CAPITAL LETTER ETA TONOS.

Categorized technically as a Uppercase Letter, this character typically falls under the Greek script. In terms of text layout and rendering, the glyph is a canonical composition and has no designated width in East Asian typography. When placed in bidirectional text, it behaves as an Left-To-Right character. Its visual representation remains not mirrored regardless of the reading direction.