Etymology of the Latin word pyrosis
the New Latin word pyrosis
derived from the Greek word purosis, πύρωσις (ignition; smelting (figuratively, conflagration, calamity as a test); ignition; (specially), smelting (figuratively, conflagration, calamity as a test))
derived from the Greek word puroun
derived from the Greek word puroo, πυρόω (to kindle; to be ignited, glow be refined or to be inflamed (with anger, grief, lust); to kindle; to be ignited, glow , be refined (by implication), or to be inflamed (with anger, grief, lust))