Answer:
1. Knighthood --- Able-bodied men who are hired by the vassal for the protection of the lord
2. Summons --- A call to appear in court
3. Standing army --- Group of soldiers ready to do battle
4. Vassal --- A man who would give protection to the lord in exchange for land
5. Subinfeudation --- Breaking down an already-smaller portion of land in exchange for services and protection
Explanation:
1- The knight was a warrior on horseback of Latin Christianity (the medieval western Europe, which had been defined around the Carolingian Empire) that served the king or another feudal lord as counterpart for the possession of a territorial domain or for money.
2- A summons is a decision issued by a judge or court through which a communication is sent to a specific person to appear at the trial one day at a specific time.
3- A permanent army is a troop composed of soldiers dedicated full time to military functions and above all that continues to exist in times of peace, without dissolving.
4- The vassal was the person who put himself at the service of a feudal lord, who gave him protection in exchange for certain services.
5- Subinfeudation was the practice whereby tenants, holding land under a king or other superior lord, shaped new and distinct forms of property, in turn by subleasing or alienating a portion of their land.
