(Latin: fire; burn, blaze)

flagration (s) (noun), flagrations (pl)
An uncontrollable fire that causes great damage: In the summer of 2016, there were many terrible flagrations in Southern California, in the mountains and along the coast, which destroyed many valuable forests and houses.
in flagrante delicto (s) (adverb) (no comparatives)
Descriptive of discovering someone behaving in an illegitimate and unethical way: An in flagrante delicto refers to a legal term which is used to indicate that a criminal has been caught in the act of committing an illegal offense; literally, "with the crime still blazing".

The phrases: "caught red-handed" or "caught in the act" are English equivalents of in flagrante delicto.

Cross references of word groups that are related, directly, indirectly, or partly to: "fire, burn, glow, or ashes": ars-, ard-; -bust; cand-, cend-; caust-, caut-; crema-; ciner-; ether-; flam-; focus, foci-; fulg-; gehenna-; ign-; phleg-; phlog-; pyreto-, -pyrexia; pyr-; spod- (ashes; waste); volcan-.