The word "pluck" comes from Old English pluccian, meaning "to pull off", from Proto-Germanic plukkōną.  It is related to words in other Germanic languages like German pflücken ("to pick"), Dutch plukken ("to pluck"), and Norwegian plukke.  It potentially stems from Vulgar Latin piluccare, related to Latin pilus ("hair").  Meanings evolved from physically pulling (feathers, hairs, strings) to metaphorical senses like "pluck up courage" or the noun for animal organs (heart, liver, lungs) removed by plucking, which led to the slang for "guts" or courage.  It also is used in euphemisms such as "Pluck a rose" for going to the necessary house (toilet) in the garden, attested from the 1700s. 

Examples of "pluck" in a sentence:  
"I plucked a lemon from the tree." 
"He plucked a stalk of dried fennel." 
"I have to pluck or wax my eyebrows." 
"He plucked the baby out of my arms." 
"I plucked off a little crunchy chunk of meat." 
"Jill rose, plucking bits of straw from her clothes." 
"She was plucked from the corps de ballet to take on Juliet." 
"After you kill the chicken, you must then pluck its feathers."
"It must have taken a lot of pluck to walk along a path that was marked “Danger." 
"The agency plucked her from obscurity and turned her into one of the world's top models." 
"After being pummeled throughout the entire fight and knocked down five times, the boxer showed a lot of pluck by finishing the the ten round match." 

Just the facts:

PLUCK Definition & Meaning - Merriam-Webster

PLUCK Synonyms: 140 Similar and Opposite Words | Merriam-Webster Thesaurus

pluck, v. — Green’s Dictionary of Slang