Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
vēlĭvŏlus, a, um, adj. [velum-volo], sail-flying, winged with sails, a poet. epithet of a ship: naves, Enn. ap. Macr. S. 6, 5 (Ann. v. 381, and Trag. v. 111 Vahl.); Ov. P. 4, 5, 42.
Absol.: mare velivolis florebat puppibus, i. e. with ships, Lucr. 5, 1442 (1440).
Transf., an epithet of the sea: maria alta velivola, Liv. And. ap. Macr. S. 6, 5: mare, Verg. A. 1, 224; Ov. P. 4, 16, 21.