Meaning of the Sanskrit Word: arjunayoh

  arjunayoh—and Arjuna    Bg 18.76
  arjunayoh—the two arjuna trees    SB 10.10.26
  arjunayoh—of the Arjunas    SB 1.12.21
  arjunayoh—of the two arjuna trees    SB 2.7.27

Can't find any compound Sanskrit words containing arjunayoh.