תּוֹהוּ, waste, desolation; vanity, idleness. Snh. 97ᵃ שני אלפים ת׳ וכ׳ two thousand years the world was waste &c. Ib. 26ᵇ, v. שָׁתַת II. Gen. R. s. 2 (ref. to Gen. I, 2) זה קין … לת׳ ובהו this refers to Cain who wanted to reduce the world to waste and desolation; a. fr.