Have great reliance on or confidence in, as in She swears by her personal physician. [Early 1800s]
Also, swear to. Have reliable knowledge of, be sure of, as in I think she was going to the library but I can't swear to it. [Mid-1700s]
Take an oath by, as in I swear by all the saints in heaven. [Early 1200s]
QUIZ YOURSELF ON THE MANY TYPES OF NOUNS
Words nearby swear by
Example sentences from the Web for swear by
Nine new Republican senators will swear their oaths of office.The Democrats’ Black Hole—and What They Can Do About It|Michael Tomasky|December 31, 2014|DAILY BEAST
A step-by-step plan to break from your various technology addictions.
Those snakes attacked unwitting passers-by, or invaded homes and hotels.The Buddhist Business of Poaching Animals for Good Karma|Brendon Hong|December 28, 2014|DAILY BEAST
Or should you swear it off in the name of better cholesterol?Bulletproof Coffee and the Case for Butter as a Health Food|DailyBurn|December 27, 2014|DAILY BEAST
Horniness packs side-by-side by with a deeper loneliness along the walls of The Park.The Craziest Date Night for Single Jews, Where Mistletoe Is Ditched for Shots|Emily Shire|December 26, 2014|DAILY BEAST
All along the highways and by-paths of our literature we encounter much that pertains to this "queen of plants."
John was baptizing at a large pool called Ænon-by-Saleim,—probably allegorical, meaning “Fountain of Repose.”Solomon and Solomonic Literature|Moncure Daniel Conway
The sewing-machine made a resounding clatter in the room; it was of a ponderous, by-gone make.The Awakening and Selected Short Stories|Kate Chopin
Mr. Spurrell came down to see a horse, and we shall be very glad to have the benefit of his opinion by-and-by.
Three hours ago you had never seen me, and now you swear my indifference will kill you.