DECANUS Leader of a "Contubernium" or 6 to 10 soldier squad within a 80+ man "Century" military unit - was an appointed position, but not a recognized rank.
DECEMBER Sacred to the god "Vesta", the tenth "Decimus" month of the 304 day, 10 month long "Romulus" Calendar. It became the twelfth month of the 12 month "revised" Roman Republican Calendar in 200 BC / 552 AUC, Ab Urba Condita, "from the Founding of the City" (Rome), when February was moved between January and March / Martius and the Roman New Year was moved from March 1st (Kalends Martius) to January 1st (Kalends Januarius / Ianuarius). Consult "Roman Calendar" on our DateYearTime Page for a more complete explanation.
DECURIO A cavalry officer
DECURION Leader of a ten man cavalry or naval unit - Was not a recognized rank. Also, a Councilman of a Municipality.
DENARIUS Silver coin equal to four brass "sestertii" coins or 16 copper "assis" "penny" coins.
DEXTRO / DEXTRA Referring to the Right / Right Hand / To the Right Side
DIMITTO Dismissed (lit. I Dismiss)
DIPLOMA A discharge certificate - Certificate of Roman Citizenship
DIREPTIO A sack or bag
DISCENS Trainee / Cadet
DOCTORE Instructor - Trainer As in a Ludus Gladiatorium (gladiator school)
DOLABRA An entrenching tool or pickaxe.
DRACO A Legion / Cohort standard surmounted by a dragon's head and with a windsock like attachment, carried by calvary units, which came into use during the 2nd Century AD. See Draco-Signum
DRACONARIUS Legionary who carries the "Draco" Standard
DUPLICARIUS Officers or soldiers who received "Double-Pay" (Centurion, Optio, Signifer, etc)
DUPONDIUS Brass coin equal to 2 "double-penny" copper "assis" coins.
DUX Another term for a commander
DYRRHACHIUM City in northern Greece where some Senators fled when Julius Caesar occupied Rome in 49BC; and where Caesar confronted the opposing forces assembled under the command of Pompey the Great. See the ROME HISTORY Page for more details.
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