Decanus | Commander of contubernium or tentparty. |
Decimipilus | Centurion of the pili of the tenth cohort of a legion. |
Decumanus | Soldier of the legio X. |
Decurio | Cavalry officer.
A - officer commanding ten to thirty horse men in the legion of the early republic.
B - officer commanding a turma in the auxilia . |
Decurio exercitator | Cavalry training officer. |
Decurio princeps | Officer in charge of unit's administration. |
Decursio | Military exercise. |
Dediticius | Someone who has surrendered. prisoner of war. |
Deditio | Unconditional surrender. |
Defector | Deserter. |
Defensores | 'Defenders'. troops in close order defensive formation. |
Dekanos | Militia man. police man. |
Dekarchos | A - cavalry officer. Greek equivalent of decurio .
B - section commander, equivalent of decanus . |
Delectus | Picked soldier. |
Deposita | Savings. |
Deputatus | Medical orderly. |
Dexa | 'Catch!'. motto inscribed on lead sling bullets. |
Diaseismos | 'Shakedown'. extortion was a relatively common military vice. |
Dictator | Senior magistrate granted emergency powers originally appointed for a period of six months. |
Difalangia | Double battle order, ie facing front and rear. |
Digmata | Shield decoration. |
Dilectator | Official in charge of conscription levy. |
Dilectus | Conscription levy. |
Diogmitès | Urban militia man. |
Diploma | Discharge certificate. |
Direptio | Sack. |
Discens | Trainee. |
Discens architecti | Trainee artillery constructor. |
Discens aquiliferum | Trainee eagle standard bearer. |
Discens aquiliferorum | Trainee eagle standard bearer. |
Discens capsariorum | Soldier training for function as medical orderly. |
Discens equitum | Trainee cavalryman |
Discens lanchiariorum ((Bad) LA) | Trainee javelineer. |
Discens phalangarium | Soldier training as a phalangarius. During the third century ad several experiments were conducted with macedonian phalanx tactics, apparently requiring special training in weapons handling and drill. |
Discens signiferorum | Trainee standardbearer. |
Dispensator | Imperial treasury slave. |
Distributio numerorum | Distribution of units. the order of battle of the Roman army in the Notitia Dignitatum. |
Doctor | Instructor. |
Doctor armorum | Weapons instructor. |
Dolabra | Axe. |
Dolus | Trick, ruse. |
Domesticus | 'Household man'. late Roman imperial guard soldier. |
Domitiana | 'Domitian's own'. honorary title for loyal army units in Domitian's reign. |
Dona militaria | Military decorations. |
Donativum | Extraordinary grant of money. |
Donis donatus | Rewarded with decorations. |
Dory | Spear. |
Dory makron | Long spear or pike. weapon used by legionary phalangarii in third century. |
Doryphoros | 'Spearman'. guard soldier. |
Doux | Military commander. |
Draco | 'Dragon'. windsock standard. |
Draconarius | Dragon bearer. late Roman standardbearer. |
Dromedarius | Camel trooper. |
Ducenarius | Late Roman officer. |
Duovir navalis | Republican era naval commander. |
Duplaris | NCO on double basic pay. |
Duplicarius | NCO on double basic pay. |
Dux | Commander. |
Dux ripae | 'River bank commander'. subordinate commander of frontier section. |
