/ ˌkɒnfləˈgreɪʃn; NAmE ˌkɑːn-/ noun
( formal ) a very large fire that destroys a lot of land or buildings
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WORD ORIGIN
late 15th cent. (denoting consumption by fire): from Latin conflagratio(n-) , from the verb conflagrare , from con- (expressing intensive force) + flagrare to blaze.