H431. alu
אֲלוּ Interjection lo! (derivation uncertain: usually regarded as by-form of אֲרוּ, q. v.; compare Egyptian Aramaic הלו, CookeNo.73, RES492 B = S-CM b); — וַאֲלוּ [Dan 2:31] וַאֲלוּ הֲוַיְתָ חָזֵי, [4:7]; [4:10]; [7:8] always in description of a vision.