Summānus (Subm-), i, m.,
a Roman deity to whom nocturnal lightnings were asscribed , but whose precise nature was unknown even to Ovid; acc. to Mart. Cap. i. q. Pluto , Ov. F. 6, 731; Mart. Cap. 2, § 161; Plaut. Bacch. 4, 8, 54; id. Curc. 3, 43; Liv. 32, 29; Cic. Div. 1, 10, 16; Plin. 2, 52, 53, § 138; 29, 4, 14, § 57; Arn. 3, 44; 5, 37; 6, 3 Orell.; Aug. Civ. Dei, 4, 23; Inscr. Orell. 1466; v. Merkel ad Ov. F. p. ccviii.—Hence: Summanalia liba farinacea in modum rotae ficta, Fest. pp. 348 and 349 Müll. ( offered in sacrifice to Summanus ).