oath 
(ōth)
(ōth)n. pl. oaths (ōthz, ōths)
Idioms: 1.
a. A solemn, formal declaration or promise to fulfill a pledge, often calling on God, a god, or a sacred object as witness.
b. The words or formula of such a declaration or promise.
c. Something declared or promised.
2. An irreverent or blasphemous use of the name of God or something held sacred.
3. An imprecation; a curse.
take an oath
To agree to a pledge of truthfulness or faithful performance.
under oath
Under a burden or responsibility to speak truthfully or perform an action faithfully.
[Middle English oth, from Old English āth.]
- unmechanical
- unmechanically
- unmeet
- unmentionable
- unmentionableness
- unmentionably
- unmerciful
- unmercifully
- unmercifulness
- unmet
- double bar
- double-barreled
- double bass
- double bassoon
- double bind
- double blind
- double-blind
- double boiler
- double bond
- double-book
- double-breasted
- double check
- double-check
- double chin
- double-click