prīmĭvirgĭus, ĭi, m. [primus-virga],
one who carries the rod first before the king , head verger : πρωτοραβδοῦχος, primivirgius, Gloss. Gr. Lat.: primivirgius, caballarius, quod primus est militiae in virgis, Gloss. Isid.