Word Study
combust
CIDE DICTIONARY
combust, a. [L. combustus, p. p. of comburere to burn up; com- + burere (only in comp.), of uncertain origin; cf. bustum funeral pyre, prurire to itch, pruna a live coal, Gr. pyrso`s firebrand, Skr. plush to burn.].
- Burnt; consumed. Chaucer. [1913 Webster]
- So near the sun as to be obscured or eclipsed by his light, as the moon or planets when not more than eight degrees and a half from the sun. [1913 Webster]"Planets that are oft combust." [1913 Webster]
OXFORD DICTIONARY
combust, v.tr. subject to combustion.
Etymology
obs. combust (adj.) f. L combustus past part. (as COMBUSTION)
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