How to import unsupported language dictionaries?

Mathematica seems to only know about these 27 languages:

However, I need access to dictionaries for other languages, namely Romanian and Japanese. Now, WordList seems to only work for some of the above languages (not exactly sure which).

Can anyone help me find a convenient way to import dictionaries of unsupported languages?

Update:

One project I found that looked useful had many dictionary files: https://github.com/titoBouzout/Dictionaries.

However, I'm not sure what to make of Importing the .dic and .aff files:

Is this UTF8? What about diacritics?

• DictionaryLookupand WordList work for other languages. – gwr Feb 19 '19 at 22:02
• This may be worth a look at: (169193). – gwr Feb 19 '19 at 22:05
• @gwr Can you provide an example of that with WordList for "Romanian" please? – user5601 Feb 19 '19 at 22:21
• @gwr if you post whatever your solution is for Romanian I'll accept – user5601 Feb 20 '19 at 3:54
• Interestingly spell checking works for Romanian input. Try: SpellingCorrectionList["săptamână", Language -> "Romanian"] to get {săptămâna, săptămână} which also answers the question for glyphs or diacritics. – gwr Feb 20 '19 at 12:26