nouneuthygrammumEVTHYGRAMMVM☆ KeepMeaningan architect's ruleLewis & Short 1879ModernAs printed, 1879EUTHYGRAMMUMLEWIS & SHORTEUTHYGRAMMUMeuthygrammum, i, n., = εὐθύγραμμον, I. an architect's rule, Vitr. 1, 1.Read the whole entry