To heat something or treat it with heat; to subject to thermal energy or high temperature.
From Latin 'calor' (heat) + '-ize' suffix (to make/do). A rare 19th-century technical verb for applying heat treatment.
Though 'calorize' is rarely used today, engineers still use similar concepts when they 'thermally treat' metals to change their properties—it's the same idea with a fancier name!
Complete word intelligence in one call. Free tier — 50 lookups/day.