Obs. rare. [cogn. w. F. arduité, It. arduità, ad. L. arduitāt-em, f. arduus: see next and -ITY.] Steepness, arduousness, difficulty.
1623. in Cockeram.
1653. Waterhouse, Apol. Learn., 95 (L.). I hope the Arduity will not be unconquerable.
1755. in Johnson.
