adjectiveper-dūrusPER-DVRVS☆ KeepMeaningvery hardLewis & Short 1879ModernAs printed, 1879PERDURUSLEWIS & SHORTPERDURUSper-dūrus, a, um, adj., I. very hard (post-class.): interpretatio, Dig. 48, 3, 2.Read the whole entry