beck (n.) Look up beck at Dictionary.com
late 14c., "nod or other mute signal intended to express desire or command," a noun use from Middle English bekken (v.), variant of becnan "to beckon" (see beckon). Transferred sense of "slightest indication of will" is from late 15c.
beck (v.) Look up beck at Dictionary.com
"to signal by a nod or gesture," c. 1300, shortening of beckon. (v.).