Definify.com

Webster 1913 Edition

Noun.

The act that which, provokes; one who excites anger or other passion, or incites to action;

as, a

provoker

of sedition

Drink, sir, is a great

provoker

of three things.

Shakespeare

provokement ‎(plural provokements)

(now rare) Provocation.
- 1596, Edmund Spenser, The Faerie Queene, IV.4:
  Whose sharp provokement them incenst so sore, / That both were bent t'avenge his usage base […].