I have tried to avoid technical terms. But finally, if you study the literature or, hopefully, visit the places described above, you will be confronted here and there with lesserknown terms. A small selection:
Abaton Inaccessible, for certain persons a not to be entered place
Acropolis Upper town. Located on a hill above the city.
Apse Semicircular extension of a church that can serve a variety of purposes.
Basilica Early Christian church, today a title for special churches.
Cavea Auditorium in Roman theaters
Chthonic deities In the subterranean underworld living gods.
Destruction layer A layer of remnants resulting from a sudden destruction (fire, earthquake).
Dromos Way leading to the burial chamber (s).
Epiphany Appearance
Ex situ Not found at the original location.
Extra Muros Outside the city (walls)
Frigidarium Cooling pool in a Roman bath
Hetairoi Macedonian aristocrat elite cavalrymen
Hypocaust heating Antique heating system in which floors and walls were flowed through by warm air.
Iconoclasm Image dispute within the Orthodox Church. Started about 730 and lasted for over 100 years.
Iconostasis A wall in an Orthodox church decorated with icons
Idol Depiction of a deity
In situ So found locally
Intra Muros Within the city (walls)
Katholikon Church in an orthodox monastery
Centaur A being half human, half horse
Kline Couch made of wood or stone were the deceased frequently were buried on.
Koilon Auditorium in Greek theaters
Lithophagae In limestone boring seashell. Literally: stone eater
Lysippos A famous Greek sculptor
Medusa One of the Gorgons, instead of hair snakes have grown her
Metochi A monastery hierarchically subordinated to another monastery. Often a farm or a representative office.
Narthex Vestibule of a basilica or a church
Odeion Roofed theater
Orchestra Stage
Pantocrator The ruler of the world
Phalangites Soldiers of the phalanx
Phalanx With long lances, short swords and shields armed troops.
Pithoi Pottery
Plutarch Greek philosopher and writer
Praetorium Originally camp of the commander, here shelter for high officials
Refectory Dining room (of a monastery)
Satyr Henchman of Dionysus, often depicted as a human with animal limbs (horns,
hooves).
Sebasteion A temple dedicated to a Roman emperor
Silenos Similar to the satyr
Semantron Wooden board in Orthodox monasteries. It is struck with a hammer and calls the inhabitants to the liturgy.
Spolia Older materials, such as remains of columns, used to build new buildings.
Stauropegion An Orthodox monastery that is not subject to any diocese but is directly subordinate to the Patriarch of Constantinople (Istanbul).
Tessera Mosaic stone, plural Tesserae
Thucydides Athenian general and historian
Tribelon Threeparted entrance or access
Triclinium Antique dining room (usually equipped with three loungers)
Triglyphs Doric order ornament element (three vertical notches).
Tumulus Mound grave