ouθ n. (pl. oaths) 1 a
solemn declaration or
undertaking (often naming God) as to
the truth of
something or as a
commitment to
future action. 2 a
statement or
promise contained in an oath (oath of allegiance). 3 a
profane or blasphemous
utterance; a
curse. øon (or under) oath having
sworn a solemn oath.
take (or swear) an oath
make such a declaration or undertaking. [OE ath f. Gmc]