Webster's Revised Unabridged Dictionary · 1913

Servile

Servile , adjective

[Latin servile, from servus a servant or slave: compare French servile. See Serve.]

1.
Of or pertaining to a servant or slave; befitting a servant or a slave; proceeding from dependence; hence, meanly submissive; slavish; mean; cringing; fawning; as, servile flattery; servile fear; servile obedience.
She must bend the servile knee. — Thomson
Fearing dying pays death servile breath. — Shakespeare
2.
Held in subjection; dependent; enslaved.
Even fortune rules no more, O servile land! — Pope
3.
(a) (Grammar) Not belonging to the original root; as, a servile letter.
(b)
(Grammar) Not itself sounded, but serving to lengthen the preceeding vowel, as e in tune.

Servile , noun

(Grammar) An element which forms no part of the original root; -- opposed to radical.