or, more fully, divus pater Falacer, is mentioned by Varro (de L. L. 5.84, 7.45) as an ancient and forgotten Italian divinity, whom Hartung (Die Rel. d. Röm ii. p. 9) is inclined to consider to be the same as Jupiter, since falandum according to Festus, was the Etruscan name for "heaven."
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890