The term 'make less harsh' can be summarized using three crossword solutions: MITIGATE (8 letters), ASSUAGE (7 letters), and EASE (4 letters). MITIGATE means to reduce the severity or intensity of something, while ASSUAGE is to make something less severe or intense. EASE is to make something less difficult or painful. All three words are related to making something less harsh, either by reducing its severity or intensity, or by making it less difficult or painful.