ويلوَيْلَةُ and وَيْلًا لَهُ and وَيْلٌ لَهُ Woe to him! [See عَوْلَكَ]. Perdition befall him! Punishment befall him! (Kull, p. 377.) See voce وَيْبٌ, and voce وَيْحٌ, and وَيْسٌ.وَيْهًا [an imperative verbal noun, which may be rendered On!] a word of incitement. (S, K.) One also says to a man, and to a horse, يَا وَيْهَاهْ [Ho! On!]. (A'Obeyd in TA in art. ايه.) See أَيَّهَ. b2:  وَيْهَكَ: see أَيْهَكَ in art. ايه. I have not found this anywhere but in that art. in the K, and doubt its correctness.