δυνάμεις [21 verses](noun pl fem nom/acc)  "Mighty works"is dynamis, which means "power," "might," "influence," "capacity," "elementary force," "force of a word," and "value of money." Elemental forces are forces such as heat and cold. -- "Mighty works" is a word that describes abilities and capacities, what actions a person can do or has done. In the singular, "power," "might," "influence," and "force." In the plural, "powerful things," "mighty  things," and so on." It does not carry a sense of authority over others, either people or laws. The verb form of this word is translated as "can" in the NT. Much more about the meaning of this word in this article about "power" and "authority."