verb/ʒy.ʁe se ɡʁɑ̃ djø/
to swear to God that, to swear on one's life that, to swear on a stack of Bibles that, to vow to (to make a promise or give an assurance with great conviction)
Synonyms: jurer sur la tête de quelqu'un que, jurer devant Dieu que