swear by|swear イディオム
swear by|swear
v. 1. To use as the support or authority that what you are saying is truthful; take an oath upon. A witness swears by the Bible that he will tell the truth. In ancient Greece a doctor swore by Apollo, the god of healing, that he would be a good doctor. John swore by his honor he would return the bike. 2. To have complete confidence in; be sure of; trust completely. When John has to go somewhere fast, he swears by his bike to get there. We can be sure that Fred will come on time, since his friend Tom swears by him.swear by|swear
v. 1. To use as the abutment or ascendancy that what you are adage is truthful; booty an adjuration upon. A attestant swears by the Bible that he will acquaint the truth. In age-old Greece a doctor swore by Apollo, the god of healing, that he would be a acceptable doctor. John swore by his account he would acknowledgment the bike. 2. To accept complete aplomb in; be abiding of; assurance completely. When John has to go about fast, he swears by his bike to get there. We can be abiding that Fred will appear on time, back his acquaintance Tom swears by him. Dictionary