Incendiary \In*cen"di*a*ry\ (?; 277), n.; pl. {Incendiaries}.
[L. incendiarius: cf. F. incendiaire. See {Incense} to
inflame.]
1. Any person who maliciously sets fire to a building or
other valuable or other valuable property.

2. A person who excites or inflames factions, and promotes
quarrels or sedition; an agitator; an exciter.

Several cities . . . drove them out as incendiaries.
--Bentley.