Word origin · etymology
Middle English combustioun, through Anglo-French and Late Latin combustio, from comburere, to burn up.
The noun records a burning metaphor. Its astrological use does not imply that a planet is physically consumed or establish the validity of a solar-proximity interpretation.
How we know · epistemology
Solar-proximity classification in a traditional method
The observable input is a Sun-planet separation in a declared coordinate convention. A method must also declare its boundaries and any cazimi exception before assigning combustion. The traditional reading of impairment is interpretive; it does not report that the body is physically burning, invisible in every observational circumstance, or unable to produce an outcome.
William Lilly: Christian Astrology, original p.113 · solar conditions ↗William Lilly: Christian Astrology, original p.114 · combustion and cazimi ↗William Lilly: Christian Astrology, original p.115 · accidental fortitudes ↗
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