Clever and unique concept, I really loved stumbling around looking at words and noting them, then seeing my guesses fall apart when I re-discovered the word in a different context. :) Also I love the sky island world!
I think with some polishing up of the UI and some gentler onboarding/tutorial this could be a total gem. And honestly, as a game the made-up language is fantastic and it's fun, but it could be a really cool way to learn a real foreign language!