David Peterson has so far created 4,000 Dothraki words When the misogynistic, male Dothraki characters launch into curse-laden tirades on "Game of Thrones," viewers have a 35-year-old Southern California father and a University of California Berkeley graduate to thank for what they hear. David J. Peterson invented Dothraki, the language spoken by the crass race of nomadic horse warriors first described in George R.R. Martin's "A Song of Fire and Ice," on which the HBO series is based. "It's a lot of fun," he said Tuesday, in his first, interactive Facetime Live interview. Especially coming up with the curse...