Strong's #5009: n'aqah (pronounced neh-aw-kaw')
 from 5008; a groan:--groaning.
Brown-Driver-Briggs Hebrew Lexicon:
 
  ne'âqâh 
 
 1) groan, groaning
 
  Part of Speech: noun feminine
Relation: from H5008; 
Usage:
This word is used 4 times:
Exodus 2:24: "And God heard  their groaning, and God remembered his covenant"
Exodus 6:5: "have also heard  the groaning of the children of Israel, whom"
Judges 2:18: "of the judge: for it repented the LORD  because of their groanings by reason of them"
Ezekiel 30:24: "arms, and he shall groan before  him with the groanings of a deadly wounded"