in baseball, 1908, from verbal phrase, from run (v.) + down (adv.). Meaning "list of entries in a horse race and the odds" is from 1935; slang generalized sense of "summary, account, list of information or facts" is from 1945.
runaround
runaway
runcible
runcinate
run-down
rundown
rune
rung
runic
run-in
runnel