American Heritage Dictionary
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Century Dictionary
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WordNet
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This was an old Roman custom, and apparently what they said for an oath translates as "Bet your testicles that I am telling the truth, your honor."— Political Animal
No oath is there prescribed, and not till 1536 was it made high treason to refuse to take the oath of supremacy; even then the oath was to be administered only to civil and ecclesiastical officers.— Henry VIII.
Mr. Hume moved that the oath should be administered to Baron Rothschild on the Old Testament.— The History of England in Three Volumes, Vol.III. From George III. to Victoria
"You must first take an oath, so that in the event of your changing your mind in the future, and telling anything to anyone, the oath might be accomplished You're quite right!"— Hung Lou Meng, Book II Or, the Dream of the Red Chamber, a Chinese Novel in Two Books
Once the oath was administered, these new deputies were confronted by the choice between perjury and service.— The Gray Dawn

American Heritage Dictionary (1)
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