godan verb (-ru), intransitive verb
cry continuously; sob bitterly; wail
Describes intense, prolonged crying; often implies audible sobbing or wailing. The auxiliary しきる adds the nuance of doing something incessantly.
赤ん坊が夜通し泣き頻った。
The baby cried continuously all night.
彼女は悲しみのあまり泣き
She sobbed bitterly out of grief.