Meaning

noun a railing at the side of a staircase or balcony to prevent people from falling

originUnadapted borrowing from French balustrade, from Italian balaustrata (“with balusters”), from balaustro (“baluster”), from balausta (“wild pomegranate flower”), via Latin balaustium, from Ancient Greek βαλαύστιον (balaústion), from Semitic, compare Classical Syriac ܒܠܳܨܳܐ (blāṣā, “pomegranate shoot”)). So named because of resemblance to the swelling form of the half-open pomegranate flower. Also…

Etymology from Wiktionary, CC BY-SA 3.0