Assuming a lower threshold as well, that it's just available for free
and no necessarily the other elements, are there resources that come
to mind?
University of Chicago's digital dictionaries of South Asia[1] has many dictionaries which are CC licensed (licenses vary per dictionary source). Tamil Wiktionary uses the University of Madras' Tamil lexicon[2] which is under CC as a key reference. We are exploring options to import Tamil lexicon into tawikt, so that they can be worked upon and more importantly end users get these results easily while doing a search from search engine.