Auxilia

(Latin) additional military troops; these troops could have included cavalry, archers, etc.
Found on http://ablemedia.com/ctcweb/glossary/glossaryi.html

auxilia

Roman auxiliary troops, including units of cavalry and light infantry. They were recruited from noncitizens in the provinces outside Italy and were often employed as provincial garrisons. Pay was...
Found on http://www.encyclo.co.uk/local/20688

Auxilia

Auxiliaries.
Found on http://www.encyclo.co.uk/local/20764
No exact match found