Oath n. : A solemn affirmation or declaration, made with a reverent appeal to God for the truth of what is affirmed.

Oath n. : A solemn affirmation, connected with a sacred object, or one regarded as sacred, as the temple, the altar, the blood of Abel, the Bible, the Koran, etc.

Oath n. : An appeal (in verification of a statement made) to a superior sanction, in such a form as exposes the party making the appeal to an indictment for perjury if the statement be false.

Oath n. : A careless and blasphemous use of the name of the divine Being, or anything divine or sacred, by way of appeal or as a profane exclamation or ejaculation; an expression of profane swearing.

Example:
What is the Oath that the president must take before officially becoming president?

Taxonomy
oath, Oath of office, free encyclopedia, vows, statement of fact, Iuppiter Lapis, strike, judge, Hedin, brother, a witness, affirmation, Greco-Roman tradition, Quakers, sacred witness, Fictional, Abraham, taker.

Defination from the web:
oath, to make a solemn vow. ... A person taking an oath indicates this in a number of ways. ... Iuppiter Lapis was held in the Greco-Roman Tradition to be an Oath Stone, an aspect of Jupiter is his role as divine law-maker responsible for ...