From G4442; to {kindle} that {is} (passively) to be {ignited}glow ({literally}) be refined (by {implication}) or (figuratively) to be inflamed (with {anger} {grief} lust): - {burn} {fiery} be on {fire} try.
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Matrix
Rev 9:17And thus I saw the horses in the vision, and them that sat on them, having breastplates of fireG4447, and of jacinth, and brimstone: and the heads of the horses were as the heads of lions; and out of their mouths issued fire and smoke and brimstone.