בֹּהוּ‎ (bôhûw|bo'-hoo|noun|masculine|emptiness)
[Heb] בֹּהוּ‎ ETCBC: בֹּהוּ‎ (subs|emptiness) OSHL: b.aj.ab TWOT: 205a GK: H983
Derivation: from an unused root (meaning to be empty);
Strong's: a vacuity, i.e. (superficially) an undistinguishable ruin
KJV: emptiness, void.