overwork
1. [ verb ] use too much
Examples:

"This play has been overworked"

Related terms: work
2. [ verb ] work excessively hard
Synonyms: exploit
Examples:

"he is exploiting the students"

Related terms: work overdrive exploitation
3. [ noun ] (work) the act working too much or too long
Synonyms: overworking
Examples:

"he became ill from overwork"

Related terms: labor
Similar spelling:   overworking
  overweary
  overarm
  overarch