Merriam-Webster's Collegiate® Dictionary, 11th Edition
HACK
I. verb
Etymology: Middle English hakken, from Old English -haccian; akin to Old High German hacchōn to hack, Old English hōc hook
Date: 13th century
transitive verb
1. to cut or sever with repeated irregular or unskillful blows, to cut or shape by or as if by crude or ruthless strokes , annoy , vex , to clear or make by or as if by cutting away vegetation ,
3. to manage successfully , tolerate , intransitive verb
1. to make chopping strokes or blows , to play inexpert golf, to cough in a short dry manner, loaf ,
4. to write computer programs for enjoyment, to gain access to a computer illegally,
II. noun
Date: 14th century
an implement for hacking, nick , notch , a short dry cough, a hacking stroke or blow, restriction to quarters as punishment for naval officers, a usually creative solution to a computer hardware or programming problem or limitation,
III. noun
Etymology: short for hackney
Date: 1672
1. hackney , b. taxicab , cabdriver ,
2. a. a horse let out for common hire, a horse used in all kinds of work, a horse worn out in service ; jade , a light easy saddle horse, a ride on a horse,
3. a person who works solely for mercenary reasons ; hireling , a writer who works on order, hacker 2,
IV. adjective
Date: circa 1734
working for hire especially with mediocre professional standards , performed by, suited to, or characteristic of a hack , hackneyed , trite ,
V. verb
Date: 1857
intransitive verb to ride or drive at an ordinary pace or over the roads especially as distinguished from racing or hunting, to operate a taxicab, transitive verb to ride (a horse) at an ordinary pace, V
I. transitive verb
Etymology: hack, noun , board on which a hawk is fed, state of partial liberty, probably alteration of Middle English hache, heche, heck lower door, hatch
Date: 1883
to rear (a young hawk) in a state of partial liberty especially prior to the acquisition of flight and hunting capabilities, V
II. noun
Etymology: origin unknown
Date: circa 1914
a guard especially at a prison