. "of or belonging to a : carmen, a hymn sung at the secular games , a secular hymn; the best known hymn of this character is that composed by Horace, at the command of Augustus, to be sung at the secular games, A. U. C. 737; cf. Suet. Vit. Hor." . "of or belonging to a : carmen, a hymn sung at the secular games , a secular hymn; the best known hymn of this character is that composed by Horace, at the command of Augustus, to be sung at the secular games, A. U. C. 737; cf. Suet. Vit. Hor." . .