incendiary

The story

1. Latin · derived fromincendiārius“setting alight”
2. Old French · derived fromincendiaire
3. Middle English · inherited fromincendiarie
4. English todayincendiary

From Middle English incendiarie, from Old French incendiaire, from Latin incendiārius (“setting alight”), from incendium (“destructive fire”), from incendō (“to set on fire, kindle”), from in- (“into, in, on, upon”) + candeō (“to be hot”).