Quoting Jaime Headden <qi_leong@hotmail.com>:
No offense to the authors, but this is another case of where a preferred pronounciation would have been beneficial:"Seitaad gen. nov Etymology.SÃÃtâÃÃd (DinÃ/Navajo), a mythological sand âmonsterâ of Dinà folklore that buried its victims in dunes."
It would sound a lot like "say Todd", but the "t" would have a sort of popping quality to it (technically, it's what's called an ejective stop) and the whole thing would be pronounced with a high pitch to the voice.
-- **************************************************************** Nicholas J. Pharris