From an unused root perhaps meaning properly, to pant (hence, to exert oneself, usually in vain; to come to naught); strictly nothingness; also trouble. Vanity, wickedness; specifically an idolaffliction, evil, false, idol, iniquity, mischief, mourners(-ing), naught, sorrow, unjust, unrighteous, vain,vanity, wicked(-ness). Compare 'ayin. see HEBREW 'ayin