This is the first-ever study of Judeo-Urdu, that is, the Hindi/Urdu language written in Hebrew script. It provides background and an introduction to the Judeo-Urdu corpus, presents nearly two hundred entries from one text - a Hebrew-Judeo-Urdu glossary - and analyzes the orthography, phonology, and morphology of Judeo-Urdu. Comparison is made to standard Hindi and Urdu, from which Judeo-Urdu diverges in many interesting ways.