H922. bohu
בֹּ֫הוּ noun [masculine] emptiness (on form see Ges§ 84a, 1 b Sta§ 95, 198 a, on usage compare LagOr. ii. 60 f.) always with תֹּהוּ q. v.; — וָבֹהוּ תֹּהוּ [Gen 1:2] of primeval earth; [Jer 4:23] of earth under judgment of ׳י; בֹהוּ וְאַבְנֵי קַותֿֿהֹוּ [Isa 34:11], the line of wasteness and the stones of emptiness, i.e. plummets, employed, not as usual for building, but for destroying walls; compare Di & see below אבן 6