Numerus (Roman military unit)

This article needs additional citations for verification. Please help by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources:  –  ·  ·  · scholar · JSTOR (April 2008) (Learn how and when to remove this template message)

A numerus (literally: "number", plural form: numeri) was the term used for a unit of the Roman army.

In the Imperial Roman army (30 BC – 284 AD), it referred to units of barbarian allies who were not integrated into the regular army structure of legions and auxilia. Such units were of undetermined strength and their organisation and equipment probably varied according to the unit's ethnic origin. The term was also applied to quasi-permanent detachments of regular army units.

In the Late Roman army (284–395 AD), a numerus was a regular infantry unit of the limitanei, or border forces, believed to have been c. 300 strong.

See also[]

• Foederati
• Imperial Roman army
• Late Roman army
• Noumeroi