There are several words that could be used as synonyms for the term "legiron," which refers to a type of restraint device. Some of these words include shackles, handcuffs, manacles, restraints, and fetters. These terms all describe a physical restraint, typically made of metal, that is used to secure someone's hands or feet and limit their movement. While these words can be used interchangeably to describe the same type of device, they may also have slightly different connotations or be used in specific contexts. Overall, they all describe a tool used for restraint and control, often in law enforcement or security contexts.