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Politics & SocietyGreekEnglish

Onager

/ˈɒnədʒər/noun

The Asiatic wild ass, and also a Roman siege catapult with a single throwing arm.

The Greek roots

ὄνος
ónos
donkey, ass
+
ἄγριος
ágrios
wild, of the fields

Literally: wild ass

The story of the word

Ammianus Marcellinus explains the weapon's name. The machine bucked backwards when it loosed, like a wild ass kicking stones at whatever chases it. Soldiers had called it a scorpion before, for its raised sting of an arm, and the donkey won. The animal keeps the older sense: ὄναγρος is still the wild ass of the Asian steppe.

How it travelled
Ancient Greek → Latin → English

In a sentence

A single onager could throw a stone heavy enough to breach a mud wall.

Onagers survive in small herds in the deserts of Iran and India.

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