The term “agent” is derived from the Latin word “agens,” which is the present participle of the verb “agere,” meaning “to do” or “to act.”

Etymology:

1. Latin

  • Word: agens
  • Meaning: The one who does or acts

2. Middle English (c. 12th to 15th century CE)

  • Term: agent
  • Meaning:
  • A person or entity that acts on behalf of another or that causes events to happen.
  • In grammar, a word or phrase that indicates the doer of an action.
  • Derived from: Latin agens

3. Modern English (from 15th century CE to present)

  • Term: Agent
  • Meaning:
  • A person or entity authorized to act on behalf of another, typically in a professional capacity.
  • A substance or force that causes a change or has an effect.
  • In grammar, a noun or pronoun representing the doer of an action in a sentence.

Summary:

The word “agent” originates from the Latin word “agens,” meaning “the one who does or acts.” In Middle English, it referred to a person or entity that acts on behalf of another or that causes events to happen, as well as a grammatical term indicating the doer of an action. In Modern English, it continues to denote a person or entity authorized to act on behalf of another, a substance or force that causes a change, and a grammatical term indicating the doer of an action in a sentence.