שָׁרָב (shârâbshaw-rawb'noun|masculineglow)
[Heb] שָׁרָב ETCBC: שָׁרָב‎ (subs|heat) OSHL: v.fx.ab TWOT: 2462a GK: H9220 Greek: ἄνυδρος, καύσων
Derivation: from an unused root meaning to glare;
Strong's: quivering glow (of the air), expectation. the mirage
KJV: heat, parched ground.