Elinor was alternately diverted and pained; but Marianne persevered, and saw every night in the brightness of the fire, and every morning in the appearance of the atmosphere, the certain symptoms of approaching frost.
"I have heard," said he, with great compassion, "of the injustice your friend Mr. Ferrars has suffered from his family; for if I understand the matter right, he has been entirely cast off by them for persevering in his engagement with a very deserving young woman.
There are no more uses of "persevere" in the book.
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We will persevere through these difficult times. Better days are ahead.
Despite an injured ankle, she persevered in overtime to help her team win.