Words related to run
Old English ærning, "act of one who or that which runs, rapid motion on foot," verbal noun from run (v.). Of a ship, "the action of sailing," 1680s.
Colloquial phrases in (or out) of the running "among (or not among) the lead competitors, competing (or not competing) in a race" (1863) is a metaphor from horse racing, where make the running "set the pace" is recorded from 1837; hence "likely to succeed." Running-shoe is from 1884.
also run-off, "precipitation water drained by streams and rivers," 1887, from the verbal phrase; see run (v.) + off (adv.). The meaning "deciding race after a tie" is by 1873; the extended sense in reference to an election between the two who got the most votes in the previous, undecided election is attested by 1910, American English.