masters is a form of:

Hireling



noun
1.
(a person who will follow anyone's orders for pay) អ្នកធ្វើដោយយកថ្លៃ, ការលោភទ្រព្យសម្បត្ដិ, តែរកចំណេញ
ENGLISH MEANING
noun
1.
One who is hired, or who serves for wages; esp., one whose motive and interest in serving another are wholly gainful; a mercenary.
adjective
1.
Serving for hire or wages; venal; mercenary.