flagr- +

(Latin: fire; burn, blaze)

flagrante delicto
1. With the crime blazing.
2. A legal term used to indicate that a criminal has been caught in the act of committing an offense.

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

flagrantly
Ardently; notoriously.
flagrate
To burn.
flagration
A conflagration.
in flagrante delicto
While the crime is blazing.

A reference to someone who is caught in the very act of committing a crime.

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-.