n.
Function: noun
Etymology: short for hackney
Date: 1672
1 a : HACKNEY b (1) : TAXICAB (2) : CABDRIVER
2 a (1) : a horse let out for common hire (2) : a horse used in all kinds of work b : a horse worn out in service : JADE c : a light easy saddle horse especially : a three-gaited saddle horse d : a ride on a horse
3 a : a person who works solely for mercenary reasons : HIRELING <party hack s > b : a writer who works on order also : a writer who aims solely for commercial success c : HACKER 2