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c.1400, from Old French cauterisier, from Late Latin cauterizare "to burn or brand with a hot iron," from Greek kauteriazein, from kauter "burning or branding iron," from kaiein "to burn" (see caustic). Related: Cauterized; cauterizing.
cauterize cau·ter·ize (kô'tə-rīz')
v. cau·ter·ized, cau·ter·iz·ing, cau·ter·iz·es
To burn or sear with a cautery.