| A | B |
| Vassal | In medieval Europe, a lord was granted land in exchange for service and loyalty to a greater lord. |
| Troubadour | Wandering poet in Europe in the Middle Ages. |
| Sacrament | sacred ritual of the Roman Catholic Church |
| Tithe | payment to a church equal to one tenth of a persons income |
| Usury | practice of lending money at interest |
| Fief | in the Middle Ages, an estate granted by a lord to a vassel in exchange for service and loyalty |
| Manor | during the Middle Ages in Europe, a lord's estate, which included one or more villages and the surrounding lands |
| Canon law | body of laws of a church |
| Charter | in the Middle Ages, a written document that set out the rights and privileges of a town |
| Guild | in the Middle Ages, association of merchants or artisans who cooperated to protect their economic interests |
| Knight | Noble in Europe who served as a mounted warrior for a lord in the Middle Ages |
| Serf | In medival Europe, peasant bound to the lords land |
| Interdict | Roman Catholic Church excommunacations of an entire region, town or kingdom |
| Capital | Money for investment |
| Apprentice | young person learning a trade from a master |
| Chivalry | Code of conduct for knights during the Middle Ages |
| Secular | Having to do with worldly, rather than religious matters |
| Excommunication | Exclusion from the Roman Catholic Church a as penalty for refusing to obey church laws |
| Anti-Semitsm | Predudice against Jews |