No ideas on what the word means, Nakis, but I've had this happen before. A few years ago, I was sleeping and suddenly sat up in bed saying a word that I did not recognize and definitely wasn't English or any other language I would recognize. For the life of me, I can't remember it now!
Anyway, I'm glad someone else does this too! Hubby is a bit of a language buff, I'll ask him if he recognizes anything about it.