*duro*

a. Burning; ardent. [ R. ] [ 1913 Webster ]

Lo! further on,
Where flames the arduous Spirit of Isidore. Cary. [ 1913 Webster ]

n. [ Prob. for F. corde du roi king's cord. ] 1. A sort of cotton velveteen, having the surface raised in ridges. [ 1913 Webster ]

2. pl. Trousers or breeches of corduroy. [ 1913 Webster ]

Corduroy road, a roadway formed of logs laid side by side across it, as in marshy places; -- so called from its rough or ribbed surface, resembling corduroy. [ U.S. ] [ 1913 Webster ]

v. t. To form of logs laid side by side. “Roads were corduroyed.” Gen. W. T. Sherman. [ 1913 Webster ]

n. [ L. durus hard + -meter. ] An instrument for measuring the degree of hardness; especially, an instrument for testing the relative hardness of steel rails and the like. [ 1913 Webster ]

a. [ L. durus. ] Hard. [ Obs. & R. ] [ 1913 Webster ]

a. [ Gr. e'y^ well + &unr_; a fan + &unr_; a tail. ] (Zoöl.) Having a fanlike tail; belonging to the Eurhipiduræ, a division of Aves which includes all living birds. [ 1913 Webster ]

‖ [ It., hard plaster. ] A variety of gesso which when dried becomes hard and durable, often used in making bas-relief casts, which are colored and mounted in elaborate frames. [ Webster 1913 Suppl. ]

a. Of or pertaining to ordure; filthy. Drayton. [ 1913 Webster ]