P₃E₁R₁D₂U₁R₁A₁B₃L₁E₁

15 points

PERDURABLE is validvalid

imperishable [adj] : PERDURABILITY [n], PERDURABLY [adv]

136,063 of 196,601 in NWL2023·also valid in CSW24

extremely durable, permanent [adj PERDURABLY]

176,619 of 280,887 in CSW24·also valid in NWL2023