שָׁוְא

shâvᵉʼ. or שַׁו; from the same as שׁוֹא in the sense of desolating; evil (as destructive), literally (ruin) or morally (especially guile); figuratively idolatry (as false, subjective), uselessness (as deceptive, objective; also adverbially, in vain); false(-ly), lie, lying, vain, vanity.