so > such
3 By reason that the captains on her side,
By reason that > Because
4 Corrupted by Paulinus, from her swerved:
Paulinus > (Paulinus Suetonius, Roman consul and general, fl. 59-66) swerved > [deserted]
5 Yet such as were through former flight preserved,
such > [such forces]
6 Gathering again, her host she did renew,
host > army
7 And with fresh courage on the victor served: