Meaning of the Sanskrit Word: kausiki

  kauśikī—the River Kauśika    SB 1.18.36
  kauśikī—Kauśikī    SB 5.19.17-18
  kauśikī—the river by the name Kauśikī    SB 9.15.12-13

Can't find any compound Sanskrit words containing kausiki.