Welsh (cy_GB) spelling dictionary for MFA, in Morfologik FSA speller format.

Provenance:
  Source Hunspell dictionary (index.dic / index.aff): Canolfan Bedwyr,
  Prifysgol Cymru, Bangor (Bangor University Welsh Language Technologies Unit),
  Copyright 2004. Distributed under the GNU General Public License.
  Mirror used: https://github.com/biglotteryfund/dictionary-cy-gb
  (index.dic / index.aff, ISO-8859-14 encoded, converted to UTF-8 here)

Build process (2026-09-13), see packaging/README.md "The Welsh spelling
dictionary" for the full recipe:
  1. Expanded with Hunspell's own 'unmunch' tool (built from hunspell 1.7.2
     source, https://github.com/hunspell/hunspell) into ~889k flat word forms.
  2. Converted ISO-8859-14 -> UTF-8, deduplicated, sorted.
  3. Compiled into Morfologik FSA format (cy_GB.dict + cy_GB.info) with
     LanguageTool's org.languagetool.tools.SpellDictionaryBuilder
     (languagetool-tools 6.8 - a build-time-only tool, not an app dependency).

License: GPL (inherited from the source Hunspell dictionary). See
https://github.com/biglotteryfund/dictionary-cy-gb/blob/master/LICENSE.
