roughen
/ˈrʌfən/
verb
- To make or become rough in texture or surface.
- Sandpaper will roughen the wood before you paint it.
- If you rub the clay too much, it will roughen and lose its smooth finish.
- The constant wind and salt spray roughened the sailor's hands.
- To make a situation, condition, or relationship more difficult or harsh.
- The argument roughened their friendship for a while.
- His harsh words roughened the atmosphere in the room.
- Economic troubles roughened life for many families in the region.