Meaning of the Sanskrit Word: prayagah

  prayagah—Allahabad, at the confluence of the two sacred rivers Ganges and Yamuna    SB 7.14.30, SB 7.14.31, SB 7.14.32, SB 7.14.33, SB 7.14.30-33

Can't find any compound Sanskrit words containing prayagah.