Dariah is a feminine variant of Darius, from Persian roots meaning possessing goodness or maintaining the good.
Dariah is an elaborated feminine variant of Daria, itself the Latin and Slavic feminine form of Darius — a name of ancient Persian origin. The name Darius derives from the Old Persian "Dārayavauš," meaning "possessing goodness" or more literally "he who holds firm the good," from the elements "daraya" (to hold, possess) and "vahu" (good). Three Persian kings bore this name, most famously Darius I the Great, who ruled the Achaemenid Empire at its height in the fifth century BCE, organized the first Persian administration of Egypt, and faced the Greeks at the Battle of Marathon in 490 BCE.
The feminine form Daria spread through the Roman Empire and later through Slavic Eastern Europe, where it has been a beloved given name for centuries. Saint Daria of Rome, a third-century Christian martyr, helped establish the name's devotional use in Catholic and Orthodox communities. In Russian and Polish cultural tradition, Daria (often nicknamed Dasha) has long been a graceful, classic choice.
The name also gained contemporary pop-culture currency through the animated television series "Daria" (1997–2002), whose sharp, intellectually independent protagonist made the name newly resonant for a generation. The Dariah spelling, with its added H, lends the name a slightly more ornate, lyrical quality — softening the final vowel into a breath and giving the name a more distinctive visual signature. It bridges the Persian-classical origins with modern American naming aesthetics, producing something that feels simultaneously timeless and fresh.