The definition of an oath is a sworn or solemn promise.
(noun)When you put your hand on a bible and swear to tell the truth in court, this is an example of a time when you take an oath.
See oath in Webster's New World College Dictionary
noun pl. oaths
Origin: ME oth < OE ath, akin to Ger eid, prob. via Celt < IE *oitos (> OIr ōeth) < base *ei-, to go (basic sense: ? to advance to take an oath) > year, L ire, to go
See oath in American Heritage Dictionary 4
noun pl. oaths oaths (ōÞz, ōths)
Origin:
Origin: Middle English oth
Origin: , from Old English āth
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