Chiasmus

two corresponding pairs arranged not in parallels (a-b-a-b) but in inverted order (a-b-b-a); from shape of the Greek letter chi (X). Those gallant men will remain often in my thoughts and in my prayers always. MacArthur Renown'd for conquest, and in council skill'd. Addison et pacis ornamenta et subsidia belli. Cicero, Pro lege Manilia Plato, Republic 494e

» Rhetorical Glossary ( Mike Green)