godan verb (-su), intransitive verb
degenerate; lapse into; fall into
Describes a decline into a worse state or condition, often moral or qualitative. The form 堕す is rare; 堕する is more common in modern Japanese.
See also: 堕する
彼は怠惰な生活に堕してしまった。
He degenerated into a life of laziness.
その国は混乱に堕した。
The country lapsed into chaos.