mergus, i, m. [mergo].
I A diver , a kind of water-fowl, Varr. L. L. 5, § 78 Müll.: praesagiunt pluviam mergi, Plin. 18, 35, 87, § 362: mergi maria fugientes, id. ib.; Ov. M. 8, 625; cf.: aequor amat; nomenque tenet, quia mergitur illo, id. ib. 11, 795; Hor. Epod. 10, 22.—Jestingly: mergus agrarius, of one who is eager to possess lands, Capitol. Pertin. 9.—
II A vine-layer , Col. 4, 15, 1; Pall. 3, 16, 1.