The Nelua Programming Language
nelua.io
nelua.io
Excerpt:
>How stable is Nelua?
>Nelua is in alpha state. Most of its syntax is well defined, low level features that are found in C are implemented, and most of the Lua standard APIs are implemented. However some notable features found in Lua such as exceptions, tables, runtime dynamic typing, closures are not implemented yet.
But based on how I've seen the word used earlier, and on a quick google for the meaning, it seems like alpha may not have been the most suitable word to use; "incomplete" might have been a better one, or, a description like the one you gave, might have been better.