pyrrhic

of or relating to a war dance of ancient Greece; "pyrrhic dance movements"

of or relating to or containing a metrical foot of two unstressed syllables; "pyrrhic verses"

of or relating to or resembling Pyrrhus or his exploits (especially his sustaining staggering losses in order to defeat the Romans); "a Pyrrhic victory"

a metrical unit with unstressed-unstressed syllables

an ancient Greek dance imitating the motions of warfare