In Bulgaria "Zara" could be an abbreviation of "Zaharina" (the stress - on the "i") or "Svetlozara" (the stress - on the first "a"). In Bulgarian the word "zahar" (the sress - on the first "a") means "sugar" as a noun, "svetl" is the root of the "light" [e.g. "svetlina" (the stress - on the "a") means "light" as a noun].