alarm: commoveō, ēre, mōvi, mōtus
barbarians: barbarī, -orum, m. (pl.)
brother: frāter, -tris, m.
build: faciō, ere, fēcī, factus
camp: castra, -ōrum, n. (pl.)
centurion: centuriō, -ōnis, m.
come: veniō, īre, vēnī, ventum
direction, quarter: pars, partis, f.
draw up: īnstruō, ere, ūxī, ūctus
foot-soldier: pedes, -itis, m.
friendship: amīcitia, -ae, f.