The word "誓词" is formed by combining the characters "誓" and "词". "誓" is composed of "折", implying commitment or bending, and "言", meaning speech, together representing a solemn vow. "词" consists of "言" for speech and "司", suggesting management or control, referring to words or expressions. Thus, "誓词" literally means the words of an oath, with "誓" conveying the act of pledging and "词" specifying the verbal form.