pluck up

Verb

pluck up (third-person singular simple present plucks up, present participle plucking up, simple past and past participle plucked up)

1. (transitive) To remove or acquire by plucking from, for example, the ground; to pick up.
   • "If I could have settled down," I said to Biddy, plucking up the short grass within reach, much as I had once upon a time pulled my feelings out of my hair and kicked them into the brewery wall: […]1860 December – 1861 August, Charles Dickens, chapter XVII, in Great Expectations […], volume I, London: Chapman and Hall, […], published October 1861, →OCLC, page 273
   • Let none associate with the soul-destroying Manicheans, who by decoctions of chaff counterfeit the sad look of fasting, who speak evil of the Creator of meats, and greedily devour the daintiest, who teach that the man who plucks up this or that herb is changed into it. For if he who crops herbs or...1885, Philip Schaff, editor, Nicene and Post-Nicene Fathers: Series II/Volume VII/S. Cyril/Lecture 6
2. (intransitive) To become more cheerful.
   • cæsar [taking the dates] My age! [He shakes his head and bites a date]. Yes, Rufio: I am an old man—worn out now—true, quite true. [He gives way to melancholy contemplation, and eats another date]. Achillas is still in his prime: Ptolemy is a boy. [He eats another date, and plucks up a little]....1898, [George] Bernard Shaw, “Cæsar and Cleopatra”, in Three Plays for Puritans: The Devil’s Disciple, Cæsar and Cleopatra, & Captain Brassbound’s Conversion, London: Grant Richards, […], published...
3. (transitive) To summon positive emotion (especially courage); to muster.
   • Thenne was there but sporynge and pluckynge vp of horses and ryghte so they cam to the fyre.
     "Then was there but spurring and plucking up of horses, and right so they came to the fire."1485, Thomas Malory, Le Morte Darthur Book XX, Chapter viii, leaf 405v
   • […] But she knew that she must pluck up courage for an important moment, and she collected herself, braced her muscles, as it were, for a fight, and threw her mind into an attitude of contest.1869 May, Anthony Trollope, “The Honourable Mr. Glascock”, in He Knew He Was Right, volume I, London: Strahan and Company, […], →OCLC, page 103

   Synonyms:

   muster up, summon up, work up