Strong's #6606: pthach (pronounced peth-akh')
 (Aramaic) corresponding to 6605; to open:--open.
Brown-Driver-Briggs Hebrew Lexicon:
 ּ (Aramaic)
  pethach 
 
 1) to open
 
 1a) (Peil) to open
 
  Part of Speech: verb
Relation: corresponding to H6605
Usage:
This word is used 2 times:
Daniel 6:10: "he went into his house; and his windows  being open in his chamber toward Jerusalem, he"
Daniel 7:10: "stood before him: the judgment was set, and the books  were opened."