Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ōrārĭum, ii, n. [1. ōs], a napkin, handkerchief, Lucil. ap. Non. 539, 22: oculum ligavit orario, Aug. Civ. Dei, 22, 8, 7.
Used in signifying applause, Vop. Aur. 48 fin.
ōrārĭus, a, um, adj. [1. ora], of or belonging to the coast (post-Aug.): naves, coasting-vessels, coasters, Plin. Ep. 10, 15 (26); cf. naviculae, id. ib. 10, 28, 2.