Cuba, Cunina and Rumina, three Roman genii, who were worshipped as the protectors of infants sleeping in their cradles, and to whom libations of milk were offered. Cunae signifies a cradle, and ruma or rumis was in ancient Latin the same as mamma, a mother's breast. (August. de Civit. Dei, iv. 10, &c.; Lactant. i. 20, 36; Varro, ap. Non. p. 167, ap. Donat. ad Terent. Phorm. i. 1. 14.)