Meaning of the Sanskrit Word: ruruduh

  ruruduḥ—cried    SB 6.14.49
  ruruduḥ—cried loudly    SB 6.14.60
  ruruduḥ—all the wives cried piteously    SB 9.10.25
  ruruduḥ—they were crying    SB 10.7.25

Can't find any compound Sanskrit words containing ruruduh.