tōhū תֹּ֫הוּ ‘formlessness’ (Hebrew)

Etymology^?: from an unused root meaning to lie waste

tōhū n, m
1) formlessness, confusion, unreality, emptiness
 1a) formlessness (of primeval earth)
  1a1) nothingness, empty space
 1b) that which is empty or unreal (of idols) (fig)
 1c) wasteland, wilderness (of solitary places)
 1d) place of chaos
 1e) vanity