誓ちかって

adverb

surely; I swear; upon my word

Emphatic adverbial use of the て-form of 誓う (to swear), expressing strong assertion or conviction. Often used in somewhat dramatic or old-fashioned speech.

• 誓ちかって、私わたしは無む実じつです。

  I swear I am innocent.

adverb

by no means; never

Used with a negative predicate to strongly deny something. Equivalent to 'absolutely not' or 'never'.

• 誓ちかってそんなことはしません。

  I would never do such a thing.