rōrārĭi, ōrum, m. [ros] (sc. milites),
a kind of light-armed Roman troops , who usually made the first attack and then retired , skirmishers (cf.: velites, ferentarii): rorarii dicti ab rore, qui bellum committebant ante, ideo quod ante rorat quam pluit, Varr. L. L. 7, § 58 Müll.; cf. Fest. s. h. v. p. 264 ib.; Non. 552 fin. ; Liv. 8, 8, 8; 8, 9, 14; Plaut. Fragm. ap. Varr. 1. 1.; cf. Becker, Antiq. III. 2, p. 275.—In sing., Lucil. ap. Non. 553, 2 sq.—Hence, ‡ rōrārĭus , a, um, adj., of or for the rorarii: rorarium vinum, quod rorariis dabatur, Fest. p. 267 Müll.