Drudge
WordNet
noun
(1) A laborer who is obliged to do menial work
(2) One who works hard at boring tasks
verb
(3) Work hard
"She was digging away at her math homework"
"Lexicographers drudge all day long"
WiktionaryText
Noun
- a person who works in a low servile job
- someone who works for (and maybe taken advantage by) someone else.