変体仮名. Variant forms of hiragana that were used prior to 1900, but which are no longer in use.
Hentaigana (変体仮名) are variant forms of hiragana that were used prior to a 1900 reform. Hentaigana are no longer in common use.
For example, the following is a hentaigana for い:
Related tags
See also
- Hentaigana on English Wikipedia
- 変体仮名 on Japanese Wikipedia