Definition of nocking:
(n) :
(archery) The notch at the rear of an arrow that fits on the bowstring.
(n) :
Either of the two grooves in a bow that hold the bowstring.
(v) :
(transitive) To fit (an arrow) against the bowstring of a bow or crossbow.
(v) :
(transitive) To cut a nock in (usually in an arrow's base or the tips of a bow).
(n) :
(nautical) The upper fore corner of a boom sail or trysail.
(n) :
A surname.