Lewis & Short

Pŏplĭfŭgĭa (Pŏpŭ-), ōrum, n. [1. populus-fugio], a festival in memory of the people’s flight to the rescue of the Latins, celebrated on the nones of July, POPLIF. NP., Calend. Maff. ap. Inscr. Orell. 2, p. 394; cf. Varr. L. L. 6, 3, § 18; Piso ap. Macr. S. 3, 2.