Ides: The 15th of March, May, July and October. The 13th of other months.
Imperium: The ancient power of kings to summon and lead armies, to order and forbid and to inflict corporal and capital punishment. Under the Republic, the imperium was divided among the Consuls and Praetors, but they were subject to appeal and intervention by the tribunes in their civil decisions and were answerable for their acts after leaving office. Only a dictator had unlimited imperium.
Insula: Literally, "island." A large, multistory tenement block.
Itinera: Streets wide enough for only foot traffic. The majority of Roman streets were itinera.
Janitor: A slave-doorkeeper, so called for Janus, god of gateways.
Kalends: The first of any month.
Latifundium: A large landed estate or plantation worked by slaves. During the late Republic these expanded tremendously, all but destroying the Italian peasant class. Legates: Subordinate commanders chosen by the Senate to accompany generals and governors. Also, ambassadors appointed by the Senate.
Legion: Basic unit of the Roman army. Paper strength was six thousand, but usually closer to four thousand. All were armed as heavy infantry with a large shield, cuirass, helmet, gladius and light and heavy javelins. Each legion had attached to it an equal number of non-citizen auxiliaries consisting of light and heavy infantry, cavalry, archers, slingers, etc. Auxilia were never organized as legions, only as cohorts.
Lictors: Attendants, usually freedman, who accompanied magistrates and the Flamen Dialis, bearing fasces. They summoned assemblies, attended public sacrifices and carried out sentences of punishment. Twenty-four lictors accompanied a dictator, twelve for a Consul, six for a propraetor, two for a Praetor and one for the Flamen Dialis.
Liquamen: Also called garum, it was the ubiquitous fermented fish sauce used in Roman cooking.
Ludus: (pi. ludi) The official public Games, races, theatricals, etc. Also, a training school for gladiators, although the gladiatorial exhibitions were not ludi.
Munera: Special Games, not part of the official calendar, at which gladiators were exhibited. They were originally funeral Games and were always dedicated to the dead. In munera sine missione, all the defeated were killed and sometimes were made to fight sequentially or all at once until only one was left standing. Munera sine missione were periodically forbidden by law.
Municipia: Towns originally with varying degrees of Roman citizenship, but by the late Republic with full citizenship. A citizen from a municipium was qualified to hold any public office. An example is Cicero, who was not from Rome but from the municipium of Arpinum.
Nobiles: Those families, both patrician and plebeian, in which members had held the Consulate.
Nomen: The name of the clan or gens; i.e., Caius Julius Caesar.
Nones: The 7th of March, May, July and October. The 5th of other months.
Novus Homo: Literally, "new man." A man who is the first of his family to hold the Consulate, giving his family the status of nobiles.
Optimates: The party of the "best men"; i.e., aristocrats and their supporters.
Patria Potestas: The absolute authority of the pater familias over the children of his household, who could neither legally own property while their father was alive nor marry without his permission. Technically, he had the right to sell or put to death any of his children, but by Republican times this was a legal fiction.
Patrician: A descendant of one of the founding others of Rome. Once, only patricians could hold offices and priesthoods and sit in the Senate, but these privileges were gradually eroded until only certain priesthoods were strictly patrician. By the late Republic, only about fourteen gens remained.
Patron: A man with one or more clients whom he was bound to protect, advise and otherwise aid. The relationship was hereditary.
Peculium: Roman slaves could not own property, but they could earn money outside the household, which was held for them by their masters. This fund was called a peculium, and could be used, eventually, to purchase the slave's freedom.
Peristylium: An open courtyard surrounded by a collonade.
Pietas: The quality of dutifulness towards the gods and, especially, toward one's parents.
Plebeian: All citizens not of patrician status.
Pomerium: The line of the ancient city wall, attributed to Romulus. Actually,, the space of vacant ground just within and without the wall, regarded as holy. Within the pomerium it was forbidden to bear arms or bury the dead.
Pontifex: A member of the highest priestly college of Rome. They had superintendence over all sacred observances, state and private, and over the calendar. There were fifteen in the late Republic: seven patrician and eight plebeian. Their chief was the pontifex maximus, a title now held by the Pope.
Popular Assemblies: There were three: the centuriate assembly (comitia centuriata) and the two tribal assemblies: comitia tributa and consilium plebis, q.v.
Populares: The party of the common people.
Praenomen: The given name of a freedman, as Marcus, Sextus, Caius, etc. i.e., Caius Julius Caesar: Caius of the stirps Caesar of gens Julii. Women used a feminine form of their father's nomen, i.e., the daughter of Caius Julius Caesar would be named Julia.
Praetor: Judge and magistrate elected yearly along with the Consuls. In the late Republic there were eight Praetors. Senior was the Praetor Urbanus, who heard civil cases between citizens. The Praetor Peregrinus head cases involving foreigners. The others presided over criminal courts. Insignia were the toga praetexta and the sella curulis, and Praetors were accompanied by two lictors. The office carried the imperium. After leaving office, the ex-Praetors became propraetors and went to govern propraetorian provinces with full imperium.
Praetorium: A general's headquarters, usually a tent in camp. In the provinces, the official residence of the governor.
Princeps: "First Citizen." An especially distinguished Senator chosen by the Censors. His name was the first called on the roll of the Senate and he was first to speak on any issue. Later the title was usurped by Augustus and is the origin of the word "prince."
Proscription: List of names of public enemies published by Sulla. Anyone could kill a proscribed person and claim a reward, usually a part of the dead man's estate.
Publicans: Those who bid on public contracts, most notable builders and tax farmers. The contracts were usually let by the Censors and therefore had a period of five years.
Pugio: The straight, double-edged dagger of the Roman soldiers.
Quaestor: Lowest of the elected officials, they had charge of the treasury and financial matters such as payments for public works. They also acted as assistants and paymasters to higher magistrates, generals and provincial governors. They were elected yearly by the comitia tributa.
Quirinus: The deified Romulus, patron deity of the city.
Rostra: A monument in the Forum commemorating the sea battle of Antium in 338 B.C., decorated with the rams, "rostra" of enemy ships (sing, rostrum). Its base was used as an orator's platform.
Sagum: The Roman military cloak, made of wool and always dyed red. To put on the sagum signified the changeover to wartime status, as the toga was the garment of peace. When the citizens met in the comitia centuriata they wore the sagum in token of its ancient function as the military muster.
Salii: "Dancers." Two colleges of priests dedicated to Mars and Quirinus who held their rites in March and October, respectively. Each college consisted of twelve" young patricians whose parents were still living. On their festivals, they dressed in embroidered tunics, a crested bronze helmet and breastplate and each bore one of the twelve sacred shields ("ancilia") and a staff. They processed to the most important altars of Rome and before each performed a war dance. The ritual was so ancient that, by the first century B.C., their songs and prayers were unintelligible.