|Noah Webster's Dictionary|
1. (v. t.) To make a significant sign to; hence, to summon, as by a motion of the hand.
2. (n.) A sign made without words; a beck.
Int. Standard Bible Encyclopedia
bek, bek'-'-n (neuma): This word from neuo, "to nod," "beckon," "make a sign" by moving the head or eyes (Luke 5:7 John 13:24 Acts 21:40; Acts 24:10), occurs only in 2 Maccabees 8:18, "Almighty God who at a beck can cast down both them that come against us, and also all the world," the Revised Version (British and American), "able at a beck." So Shak, "troops of soldiers at their beck"; "nod" is now generally used.
Beckon (4 Occurrences)
John 13:24 Simon Peter therefore beckoned to him, and said to him, "Tell us who it is of whom he speaks." (Root in WEB KJV ASV WBS YLT RSV)
Acts 21:40 When he had given him permission, Paul, standing on the stairs, beckoned with his hand to the people. When there was a great silence, he spoke to them in the Hebrew language, saying, (Root in WEB KJV ASV DBY WBS YLT)
Isaiah 13:2 Put up a flag on a clear mountain-top, make a loud outcry to them, give directions with the hand, so that they may go into the doors of the great ones. (See NIV)
Isaiah 49:22 This is the word of the Lord God: See, I will make a sign with my hand to the nations, and put up my flag for the peoples; and they will take up your sons on their beasts, and your daughters on their backs. (See NIV)