pleonasm

The story

1. Ancient Greek · derived fromπλεονασμός
2. Late Latin · learned borrowing frompleonasmus
3. English todaypleonasm

Learned borrowing from Late Latin pleonasmus, from Ancient Greek πλεονασμός (pleonasmós), from πλεονάζω (pleonázō, “to be superfluous”), from πλείων (pleíōn, “more”).