~ 1 [ 'pɪrɪk ]
■ adjective (of a victory) won at too great a cost to have been worthwhile for the victor.
Origin
C19: from the name of Pyrrhus , a Greek king who invaded Italy and defeated the Romans in 279 BC but sustained heavy losses, + -ic .
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~ 2 [ 'pɪrɪk ]
■ noun a metrical foot of two short or unaccented syllables.
■ adjective written in or based on ~s.
Origin
C17: via L. from Gk purrhikhios (pous) '~ (foot)', the metre of a song accompanying a war dance, named after Purrhikhos , inventor of the dance.