Are yams and sweet potatoes the same?
c.1300, "to move forcibly by pulling, to drag," from Old English pullian "to pluck off (wool), to draw out," of unknown origin, perhaps related to Low German pulen "remove the shell or husk," Frisian pûlje "to shell, husk," Middle Dutch polen "to peel, strip," Icelandic pula "work hard."
Early 14c. as "to pick, pull off, gather" (fruit, flowers, berries, leaves, petals, etc.); mid-14c. as "to uproot, pull up" (of teeth, weeds, etc.). Sense of "to draw, attract" (to oneself) is from c.1400; sense of "to pluck at with the fingers" is from c.1400. Meaning "tear to pieces" is mid-15c. By late 16c. it had replaced draw in these senses. Related: Pulled; pulling.
Common in slang usages 19c.-20c.; Bartlett (1859) has to pull foot "walk fast; run;" pull it "to run." To pull up "check a course of action" is from 1808, figurative of the lifting of the reins in horse-riding. To pull (someone's) chain in figurative sense is from 1974, perhaps on the notion of a captive animal; the expression was also used for "to contact" (someone), on the notion of the chain that operates a signaling mechanism.
To pull (someone's) leg is from 1882, perhaps on notion of "playfully tripping" (cf. pull the long bow "exaggerate," 1830, and pulling someone's leg also sometimes was described as a way to awaken a sleeping person in a railway compartment, ship's berth, etc.). Thornton's "American Glossary" (1912) has pull (n.) "a jest" (to have a pull at (someone)), which it identifies as "local" and illustrates with an example from the Massachusetts "Spy" of May 21, 1817, which identifies it as "a Georgian phrase." To pull (one's) punches is from 1920 in pugilism, from 1921 figuratively. To pull in "arrive" (1892) and pull out "depart" (1868) are from the railroads.
To pull (something) off "accomplish, succeed at" is originally in sporting, "to win the prize money" (1870). To pull (something) on (someone) is from 1916; to pull (something) out of one's ass is Army slang from 1970s. To pull rank is from 1919; to pull the rug from under (someone) figuratively is from 1946.
c.1300, "a fishing net;" mid-14c., "a turn at pulling," from pull (v.). From mid-15c. as "an act of pulling." Meaning "personal or private influence" is by 1889, American English, from earlier sense "power to pull (and not be pulled by)" a rival or competitor (1580s).