Pinnacle - Vine's Expository Dictionary of New Testament Words
Pinnacle[ 1,,G4419, pterugion ]
(a) a little wing" (diminutive of pterux, "a wing");
(b) "anything like a wing, a turret, battlement," of the temple in Jerusalem, Matthew 4:5; Luke 4:9 (of the hieron, "the entire precincts," or parts of the main building, as distinct from the naos, "the sanctuary"). This "wing" has been regarded
(1) as the apex of the sanctuary,
(2) the top of Solomon's porch,
(3) the top of the Royal Portico, which Josephus describes as of tremendous height (Antiq. xv. 11.5). It is used in the Sept. of the fins of fishes, e.g., Leviticus 11:9-Leviticus 11:12; of the part of a dress, hanging down in the form of a wing, Ruth 3:9; 1 Samuel 24:5.