Wikipedia
or () is an Avestan word for a Zoroastrian concept literally denoting "glory" or "splendour" but understood as a divine mystical force or power projected upon and aiding the appointed. The neuter noun thus also connotes "(divine) royal glory," reflecting the perceived divine empowerment of kings. The term also carries a secondary meaning of "(good) fortune"; those who possess it are able to complete their mission or function.
In 3rd-7th century Sassanid-era inscriptions as well as in the 9th-12th century texts of Zoroastrian tradition, the word appears as Zoroastrian Middle Persian khwarrah, rendered with the Pahlavi ideogram GDE, reflecting Aramaic gada "fortune." Middle Persian khwarrah continues as New Persian k(h)orra. These variants, which are assumed to be learned borrowings from the Avestan, are the only Iranian language forms with an initial 'xᵛ-'. In all other dialects, the word has an initial f- (see details under related terms, below).