We don't have synonyms for armatus yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are aratus.
(N) :
Flavius ArmatusAlso Harmatus and Harmatius; , and (died 477), also known as Harmatius, was an Eastern Roman military commander, magister militum under Emperors Leo I, Basiliscus and Zeno, and consul.
(N) :
Flavius ArmatusAlso Harmatus and Harmatius; , and (died 477), also known as Harmatius, was an Eastern Roman military commander, magister militum under Emperors Leo I, Basiliscus and Zeno, and consul.