intransitive. To persevere or persist in, remain obstinate or steadfast in (a course of action, purpose, opinion, assertion, etc.). Obsolete.

transitive. gen. To go on with, continue, persevere in (an undertaking). Also (occasionally): to go on with the use of (something). Obsolete.

In emphatic use: was fully determined to; insisted on or persisted in ——ing. In early use with needs: see needs, adv. 6a. Also with have followed by…

intransitive. To persist in (a course of action). Obsolete.

intransitive. To abide by or keep to (a decision, opinion, commitment, ruling, etc.); to refuse to renounce or abandon.

figurative. to tug out, to go through with a struggle to the end; to drag out. Obsolete. rare.

transferred. With adverb (e.g. out, down) or adverbial phr.: To get or bring into a specified condition by harassing treatment, persistent…

transitive. colloquial. To put up with or persevere with (something difficult or disagreeable), esp. so as to see it through to the end. Chiefly in…

intransitive. To keep at (a task or endeavour); to persevere with.

To deal heavy blows, to work hard (at something), to labour away, etc.

To keep up with (a competitor in a game, a race, etc.). colloquial (originally U.S.). Also figurative, to concentrate on, to apply oneself to, to…

figurative. to chase up: to pursue (a matter, person, etc.) vigorously with a specific purpose, esp. after an earlier unsatisfactory response; to…