NOT Modern hypotheses. It is "korean hypotheses"
Modern hypotheses suggest that it is cognate with the modern Korean word nara "country, kingdom".
This hypothesis is denied in Japan. 18.104.22.168 10:24, 21 February 2013 (UTC)
- Yet this hypothesis is treated seriously in various reputable Japanese works. Even popular place-name etymological references mention this theory. Both the English and Japanese Wikipedia articles also mention this theory. Notably, the Japanese article doesn't describe this theory as outdated or discounted, only refuted (which most etymological theories are, after all); meanwhile, the English article does describe this theory as less likely, but based on a refutation that appears to fall through (w:Christopher I. Beckwith argues that Goguryeo *narak derives from Old Chinese 壌 with a purported reading of *nrak, but that doesn't agree with what I've read, which reconstructs the reading as */naŋ/ or */njaŋ/ -- there's nothing to correlate to the /r/ in the Goguryeo, and the final /ŋ/ in the Old Chinese would seem to rule out any borrowing with a final /k/).
- I'm currently researching the etymology of Japanese Nara. The older etymology Eiríkr Útlendi │Tala við mig 18:54, 23 February 2018 (UTC) aligns with other things I'm reading. I will probably restore that content, or at least a reworked version of it, in the near future. ‑‑