syncrisis

[ sing-kruh-sis, sin- ]
/ ˈsɪŋ krə sɪs, ˈsɪn- /

noun Rhetoric Obsolete.

the comparison of opposites.

Origin of syncrisis

1650–60; < Late Latin < Greek sýnkrisis combination, comparison, equivalent to syn- syn- + kri- (stem of krī́nein to separate) + -sis -sis