臥ふし転まろぶ

godan verb (-bu), intransitive verb

fall and roll over; wriggle about

Rare, literary verb describing falling down and rolling or writhing, often in pain or distress. Not used in everyday speech; modern equivalents include 転げ回る or のたうち回る.

• 彼かれは苦くるしみに臥ふし転まろんだ。

  He fell and writhed in agony.

• 古ふるい物もの語がたりでは、傷きずついた武ぶ士しが地じ面めんに臥ふし転まろぶ場ば面めんがよく出でてくる。

  In old tales, scenes of wounded samurai falling and rolling on the ground often appear.