He undulates the surface, he raises it in hills, scoops it into vallies, and roughens it with rocks.
The smoker should avoid biting the mouthpiece as it roughens it.
“I fancy the wind is setting inshore moderately fresh, and he wants us to come off before it roughens the water,” said Nasmyth.
The sea, perhaps because of its saltness, roughens the outside but keeps sweet the kernel of its servants' soul.
Moisture causes rust, roughens the surfaces of the utensils, and makes them more difficult to clean.
As a general rule, pain, especially if it be mental, hardens and roughens the character.
We put in the clear glass, and the wind blows the sand against it and roughens the outer surface like ground glass.
It roughens the smooth round particles of sandy soils, and prevents their compacting, as they are often liable to do.
In so doing, it roughens the surfaces of the particles of sand, and renders the soil less liable to be compacted by rains.