What does the Greek word agorazo mean in Paul's redemption passages?

Les explains that agorazo is one of the basic Greek words used in redemption. He defines it as "to buy," and more specifically "to buy out of the market." The picture is a slave market in Paul's day, such as in Rome, where slaves might arrive after Roman legions brought victims back from Europe. In that setting, if slaves were not bought out of the market, the Colosseum was the end—fed to the animals, the lion. Their only hope, once in the slave market, was to be bought out. Les then notes the next word in the same analogy is "set free." He applies this to humanity: as sons of Adam falling short of the glory of God, every person is in Satan's slave market, whether they know it or not, and unless purchased out, their end is spiritual and eternal death.