U+1B05B "𛁛" Hentaigana Letter So-5 Unicode Character

U+1B05B "𛁛" Hentaigana Letter So-5 is a historical variant of the Japanese hiragana character "そ" (so), belonging to the collection of hentaigana, or alternative cursive forms of kana that were commonly used in pre-modern Japanese writing before the standardized kana system was established in the early 20th century. This specific character, designated as so-5 in its classification, was derived through cursive abbreviation from the Chinese character 曽 (sō) and was used in classical texts and manuscripts to represent the syllable "so" with a distinct calligraphic style. Its inclusion in the Unicode Standard under the Hentaigana block, encoded in 2017, helps preserve and digitally represent these historical scripts, aiding in the study and documentation of Japan’s written heritage.