وَا

generally means Alas! see وَا حَرَبَا, and the last verse voce حَتَّى.

وَا زَيْدَاهَ Alas, Zeyd!

وَا دَفْرَاهْ, and وَانِتْنَاهْ, Alas, stench! meaning Alas, what an abominable thing! See دَفْرٌ; and أَبٌ.