O / ōrārĭus
adjective

ōrārĭus

fem. ōrāria · neut. ōrārium
belonging to the coast
of or belonging to the coast (post-Aug.): naves, coasting-vessels, coasters, Plin. Ep. 10, 15 (26); cf. naviculae, id. ib. 10, 28, 2.