HARSH is validvalid

severe [adj HARSHER, HARSHEST] : HARSHLY [adv], HARSHNESS [n]

9,051 of 196,601 in NWL2023·also valid in CSW24

severe [adj HARSHER, HARSHEST, HARSHLY] / to cause (a state of elation) to be diminished or ended [v -ED, -ING, -ES]