JMdict: 1984310

荒む 【すさむ】

1. [v5m,vi] to grow wild; to run to waste; to become degenerate
2. [v5m,vi] to become rough (of art, craft, etc.); to lose refinement; to deteriorate (of skill)
3. [v5m,aux-v] to intensify (of wind, rain, etc.); to become more severe