Swear by(verb)
Have or express great confidence in the use, value, or effectiveness of.
Hindi meaning:विश्वास रखना
Synonyms: Advocate, Back, Believe in, Trust, Endorse, Have faith in
Antonyms: Disapprove, Oppose
Example: The Accused swore by the god and told the truth and finally found non-guilty.
Forms: Swear by, Swore by, Sworn by.
Trick to remember: Geeta pe hath rakh kar Swear by kiya. 
