steply

From step +‎ -ly.

steply (comparative more steply, superlative most steply)

1. Misspelling of steeply.
   • 1914, Geological Survey of Canada, Summary report - Geological Survey Department:

     It was also supposed by Clapp that the steply-dipping sandstones and shales exposed along the Chemainus river and forming the base of Mount Prevost were unconformably overlain by the gently dipping conglomerates […]

   • 1915, Current history and Forum:

     Away to the southwest, beyond the patches of firwood and the gray, steply rolling land, there toned the far diapason of artillery; strings of army transport, Red Cross vehicles, and miscellaneous men straggled upon the road.

   • 1949, Edmund Maute Spieker, The transition between the Colorado Plateaus and the Great Basin:

     Crossbedding in the gray sandstones shows that it is now right side up, and in Flagstaff time it was therefore on the east flank of a steply folded anticline.

2. Step by step; gradually; in steps; stepwise.
   • 1969, Geological Survey (U.S.), U.S. Geological Survey professional paper:

     Some of the most significant Paleozoic inliers occur near Las Delicias in southwestern Coahuila, 480 km (300 miles) south of the Marathon region, where a thick sequence of marine Permian with volcanic components has been steply folded […]

   • 1992, International Council of the Aeronautical Sciences. Congress, American Institute of Aeronautics and Astronautics, International Council of the Aeronautical Sciences, ICAS proceedings, 1992:

     For an instance, the disadventages about the die CAD system are as the following: * CAD technique can only participate in the design process partially and steply.

steply (comparative more steply, superlative most steply)

1. Stepwise; gradual.
   • 1968, International Measurement Congress, International Measurements Conference, Acta IMEKO:

     The electron-hole pairs produced on this way cause a steply rise of the reverse current (i.e. field emission).

• Pytels, pleyts