Darayavahush

Old Persian form of DARIUS.

DARIUS   male   English, Lithuanian, Romanian, Biblical, Biblical Latin
Roman form of Δαρειος (Dareios), which was the Greek form of the Persian name Dārayavahush, which was composed of the elements dâraya "to possess" and vahu "good". Three ancient kings of Persia bore this name, including Darius the Great who expanded the Achaemenid Empire to its greatest extent. His forces invaded Greece but were defeated in the Battle of Marathon.

It has never been very common as a given name in the English-speaking world, though it rose in popularity after the middle of the 20th century.
EQUIVALENTS
ANCIENT GREEK: Dareios
BIBLICAL GREEK: Dareios
BIBLICAL HEBREW: Daryawesh
BIBLICAL LATIN: Darius
BIBLICAL: Darius
CROATIAN: Darijo, Dario
ENGLISH: Darius
ITALIAN: Dario
LITHUANIAN: Darijus, Darius
PERSIAN: Dariush, Daryush
POLISH: Dariusz
ROMANIAN: Darius
SPANISH: Darío
DIMINUTIVES AND SHORT FORMS
POLISH: Darek
FEMININE FORMS
BELARUSIAN: Darya
CROATIAN: Daria, Darija, Darinka
CZECH: Darina, Darja
ENGLISH: Daria
FINNISH: Tarja
ITALIAN: Daria
LATE GREEK: Dareia, Daria
POLISH: Daria
ROMANIAN: Daria
RUSSIAN: Darya
SERBIAN: Darija
SLOVENE: Darija, Darinka, Darja
UKRAINIAN: Dariya, Daryna, Odarka
OTHER FORMS
FINNISH: Taru