the.com/roughening
The slow betrayal of every smooth thing by time, friction, and weather.
means The process of making or becoming uneven, coarse, or textured rather than smooth.
from From Old English ruh, meaning hairy or coarse, the same root that gives us rough and ruffle, things bristling against the orderly world.
Engineering trickSurfaces are roughened deliberately to make glue grip better.
Skin scienceCold air roughens skin by stealing its moisture.
WeatherRoughening seas warn sailors before storms fully arrive.