E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
the most famous war-dance of antiquity, received its name from Pyrrichos, a Dorian. It was danced to the flute, and its time was very quick. Julius Cæsar introduced it into Rome. The Romaika, still danced in Greece, is a relic of the ancient Pyrrhic dance.