Etymology
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jump (n.)
1550s, "an act of jumping," from jump (v.). Figurative meaning "sudden abrupt rise" is from 1650s. Meaning "abrupt transition from one point to another" is from 1670s. Sense of "a parachute descent" is from 1922. Meaning "jazz music with a strong beat" first recorded 1937, in Count Basie's "One O'Clock Jump." Jump suit "one-piece coverall modeled on those worn by paratroopers and skydivers" is from 1948. To get a jump on "get ahead, get moving" is from 1910, perhaps a figurative use from the jump-spark that ignites an engine.
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jump (v.)

1520s, "make a spring from the ground" (intransitive), a word with no apparent source in Old or Middle English, perhaps imitative (compare bump (v.)); another theory derives it from words in Gallo-Roman dialects of southwestern France (such as jumba "to rock, to balance, swing," yumpa "to rock") and says it might have been picked up during the Hundred Years War. Similarities have been noted to Swedish dialectal gumpa "spring, jump," German dialectal gampen "jump, hop," but OED finds no basis for a relationship.

It has superseded native leap, bound, and spring in most senses. Meaning "pass abruptly from one state to another" is from 1570s. Meaning "move suddenly with a leap" is from 1724. The transitive meaning "to attack, pounce upon" is from 1789; that of "to do the sex act with" is from 1630s. Related: Jumped; jumping.

Sense in checkers is from 1862. To jump to "obey readily" is from 1886. To jump to a conclusion is from 1704. To jump rope is from 1853; Jumping-rope (n.) is from 1805. Basketball jump-shot "shot made while the player is in the air" is from 1934; also used of billiard shots. Jump in a lake as a dismissive invitation is attested from 1912.

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get (n.)
early 14c., "offspring, child," from get (v.) or beget. Meaning "what is got, booty" is from late 14c.
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get (v.)

c. 1200, from Old Norse geta (past tense gatum, past participle getenn) "to obtain, reach; to be able to; to beget; to learn; to be pleased with," a word of very broad meaning, often used almost as an auxilliary verb, also frequently in phrases (such as geta rett "to guess right"). This is from Proto-Germanic *getan (source also of Old Swedish gissa "to guess," literally "to try to get"), from PIE root *ghend- "to seize, take."

Old English, as well as Dutch and Frisian, had the verb almost exclusively in compounds (such as begietan, "to beget;" forgietan "to forget"). Vestiges of an Old English cognate *gietan remain obliquely in modern past participle gotten and original past tense gat, also Biblical begat.

In compound phrases with have and had it is grammatically redundant, but often usefully indicates possession, obligation, or necessity, or gives emphasis. The word and phrases built on it take up 29 columns in the OED 2nd edition; Century Dictionary lists seven distinct senses for to get up.

"I GOT on Horseback within ten Minutes after I received your Letter. When I GOT to Canterbury I GOT a Chaise for Town. But I GOT wet through before I GOT to Canterbury, and I HAVE GOT such a Cold as I shall not be able to GET rid of in a Hurry. I GOT to the Treasury about Noon, but first of all I GOT shaved and drest. I soon GOT into the Secret of GETTING a Memorial before the Board, but I could not GET an Answer then, however I GOT Intelligence from the Messenger that I should most likely GET one the next Morning. As soon as I GOT back to my Inn, I GOT my Supper, and GOT to Bed, it was not long before I GOT to Sleep. When I GOT up in the Morning, I GOT my Breakfast, and then GOT myself drest, that I might GET out in Time to GET an Answer to my Memorial. As soon as I GOT it, I GOT into the Chaise, and GOT to Canterbury by three: and about Tea Time, I GOT Home. I HAVE GOT No thing particular for you, and so Adieu." [Philip Withers, "Aristarchus, or the Principles of Composition," London, 1789, illustrating the widespread use of the verb in Modern English]

As a command to "go, be off" by 1864, American English. Meaning "to seize mentally, grasp" is from 1892. Get wind of "become acquainted with" is from 1840, from earlier to get wind "to get out, become known" (1722). To get drunk is from 1660s; to get religion is from 1772; to get better "recover health" is from 1776. To get ready "prepare oneself" is from 1890; to get going "begin, start doing something" is by 1869 in American English; get busy "go into action, begin operation" is from 1904. Get lost as a command to go away is by 1947. To get ahead "make progress" is from 1807. To get to (someone) "vex, fret, obsess" is by 1961, American English (get alone as "to puzzle, trouble, annoy" is by 1867, American English). To get out of hand originally (1765) meant "to advance beyond the need for guidance;" sense of "to break free, run wild" is from 1892, from horsemanship. To get on (someone's) nerves is attested by 1970.

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get-away (n.)
also getaway, 1852, "an escape," originally in fox hunting, from verbal phrase get away "escape" (early 14c.); see get (v.) + away (adv.). Of prisoners or criminals from 1893.
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jump-start (v.)

also jumpstart, "to start a car engine using battery booster cables," by 1970; see jump (n.) + start (v.). The sense of jump is that in the jump-spark ignition system, attested from 1883 in gas-lighting, from c. 1902 as a common way to start an automobile; hence also jumper "wire used to cut out ('jump over') part of a circuit or to close a gap," a sense attested from 1901 in telegraphy. Related: Jumpstarted; jumpstarting. Figurative use by 1975. Jump-leads "jumper-cables" is from 1969; jumper-cables from 1961.

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get-together (n.)
1911, from get (v.) + together (adv.). The verbal phrase is attested by c. 1400 as "collect, gather;" meaning "to meet, to assemble" is from 1690s. As "to organize" (oneself), by 1962.
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get over (v.)
1680s, "overcome," from get (v.) + over (adv.). From 1712 as "recover from;" 1813 as "have done with."
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get on (v.)
1590s, "to put on," from get (v.) + on (adv.). Meaning "prosper" is from 1785; that of "to advance, make progress" is from 1798; that of "be friendly" (with) is attested by 1816.
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get off (v.)
"escape," c. 1600, from get (v.) + off (adv.). Sexual sense attested by 1973.
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