[11.14] increpuēre describes the sound made by the spears as they struck the shields.
[11.15] fulgeō.
[11.16] = spectātōrēs.
[11.17] cōnserō.
[11.18] cadō.
[11.19] Ad cāsum: we say ‘at the fall,’ but the Latin thinks of the shout as rising against (i.e. to greet) the fall.
[11.20] circumstō.
[11.21] Cf. [p. 5, n. 19].
[11.22] fugam capessīvit: ‘took (to) flight’; cf. ‘to take to one’s heels.’
[11.23] singulōs per intervālla: ‘one by one, at intervals.’