πυρρίχιος

A. of or belonging to the πυρρίχη, π. [εἶδος], ὄρχησις, the Pyrrhic dance, Luc. Salt. 9, Hld. 3.10; π. δρόμος Hdn. 4.2.9.

II. in Metric, ποὺς π. a pyrrhic, i.e. a foot consisting of two short syllables, used in the πυρρίχη, Longin. 41.1, Heph. 3.1, Aristid.Quint. 1.15.