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wildfire (n.)

Old form(s): wild fire , Wild-fire

flaming gunpowder; also: will o' the wisp; type of eruptive disease

1H4 III.iii.39	[Falstaff to Bardolph, of Bardolph's face] a ball of wildfire
Luc.1523	[of Sinon] Whose words like wildfire burnt the shining glory / Of rich-built Ilion