9 letters · 20 points in Scrabble
verb burn, sear, or freeze (tissue) using a hot iron or electric current or a caustic agent
verb make insensitive or callous; deaden feelings or morals
originFrom Middle French cauteriser, from Late Latin cauterizō (“to burn with a hot iron”), from Ancient Greek καυτηριάζω (kautēriázō, “to brand”), from καυτήρ (kautḗr, “branding iron”), from καίω (kaíō, “to burn”).
Etymology from Wiktionary, CC BY-SA 3.0