English
incendiarism
From incendiary + -ism.
A compound of incendiary + -ism
Proto-Indo-European *(s)kend- ‘to shine, glow’
…
Latin incendium ‘destructive fire’
Latin incendiārius ‘setting alight’
Old French incendiaire
Middle English incendiarie
English incendiary
Today it means
noun The act or practice of burning property; arson.
Language periods are conventional ranges, not dates for this word.
Etymograph / incendiarism