Dictionary entry

Incendiary

Webster's Dictionary 1913

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.