Etymology
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Words related to stop

backstop (n.)
1819, "something at the back as a barrier;" see back (adj.) + stop (n.). In U.S. baseball, from 1889, "fence a short distance behind the catcher;" figurative extension to "catcher on a baseball team" is from 1890. The verb is attested from 1956 in the sense of "support." Related: Backstopped; backstopping.
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door-stop (n.)

"device placed behind a door to prevent it from being opened too widely," 1859, from door + stop (n.).

non-stop (adj.)

also nonstop, "that does not stop," 1903, from non- + stop (n.); originally of railway trains not making intermediate stops. As an adverb by 1920.

one-stop (adj.)

1914, of airplane flights, "making a single stop along the way," from one + stop (n.). Of commercial establishments, "able to supply all of a customer's needs," by 1931. 

shortstop (n.)
1837, from short (adj.) + stop (n.). In cricket, there also is a longstop.
estop (v.)
in law, "to bar, prevent, preclude," 1530s, from Anglo-French estopper "to stop, bar, hinder" (especially in a legal sense, by one's own prior act or declaration), from Old French estoper "plug, stop up, block; prevent, halt" (also in obscene usage), from estope "tow, oakum," from Latin stuppa "tow" (used as a plug); see stop (v.).
stop-and-go (adj.)
1926, originally a reference to traffic signals; see stop (v.), go (v.). Stop-go in same sense is from 1918.
stopgap (n.)

also stop-gap, 1680s, from stop (v.) + gap (n.); the notion probably being of something that plugs a leak, but it may be in part from gap (n.) in a specific military sense "opening or breach in defenses by which attack may be made" (1540s). Also as an adjective from 1680s.

stop-over (n.)
also stopover, 1881, from the verbal phrase, from stop (v.) + over (adv.).
stoppage (n.)
mid-15c., "deduction from payment," from stop (v.) + -age. From late 15c. as "impediment, hindrance, obstruction;" 1650s as "act of stopping."