In the book Always Coming Home, by Ursula K. Le Guin, the author created the future Kesh language and Aiha alphabet. Does anyone with an anthropological or etymological background and experience with this book have any idea how modern languages would evolve into this? Could it just be English + 5000 years, or does it seem like there's other languages that got mixed in?
From the back of the book it is stated that their written language and spoken are completely separate things and are not interchangeable which is quite a shift from modern English, but it seems like they may be many thousands of years in the future which would allow for such drastic changes. Some words such as "kailikú" for "quail" have the similar hard /k/ and "sleep" is translated to "lahe" which seems to be pronounced similarly to "lay". These seem to be fairly rare and most words have no obvious connection or similar pronunciations.