slave

nouns

a person who is owned by someone
is a type of (narrower)
a human being
"there was too much for one person to do"
someone who works as hard as a slave
someone entirely dominated by some influence or person
"a slave to fashion"; "a slave to cocaine"; "his mother was his abject slave"
is a type of (narrower)
a human being
"there was too much for one person to do"

verbs

work very hard, like a slave
is derived from