Lewis & Short

Ŏpĭconsīva or Ŏpĕconsīva, ōrum, n., the festival of Ops Consivia, celebrated on the 25th of August: Opeconsiva dies ab deā Ope Consivia, quojus in Regiā sacrarium, Varr. L. L. 6, § 21 Müll.; Calend. Maff. ap. Inscr. Orell. 2, p. 396 and 311.