Ada

"The mere uttering of the magic word 'ada' preserves from bad luck. Good luck is sure if you say it every morning and every evening, turning towards the North and South." —M.C. Poinsot, Complete Book of the Occult and Fortune Telling, 1945

Perhaps related is the magical phrase Ada Ada Io Ada Dia, spoken by Welsh Romany Gypsies as they tell fortunes with dice. “The phrase sounds rather like ‘Oh dear, oh dear, I owe, oh dear, dear.’” “Exactly what it means is now lost in the mist of time, but it is a traditional divination rune or formula of words of power, probably Celtic in origin" (D. Valiente, “Stone Divination,” 2005).