shav' (Hebrew #7723)
from the same as 7722 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)
KJV usage: false(-ly), lie, lying, vain, vanity.
Pronounce: shawv
Origin: or shav {shav}