Servile
/ˈsɜː(ɹ).ˌvaɪl/
noun
(grammar) An element which forms no part of the original root.
A slave; a menial.
adjective
Of or pertaining to a slave.
Submissive or slavish.
“servile flattery; servile obedience”
(grammar) Not belonging to the original root.
“a servile letter”