godan verb (-mu), intransitive verb
stop crying; cry oneself out
Intransitive verb meaning to cease crying, often after a period of crying. Can imply crying until one is exhausted or naturally calming down.
赤ちゃんがやっと泣き止んだ。
The baby finally stopped crying.
彼女はしばらく泣いた後、泣き止んだ。
After crying for a while, she stopped.