From The Collaborative International Dictionary of English v.0.48:
Chock \Chock\, v. t. [imp. & p. p. Chocked; p. pr. & vb. n. Chocking.] To stop or fasten, as with a wedge, or block; to scotch; as, to chock a wheel or cask. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Chock \Chock\, v. i. To fill up, as a cavity. "The woodwork . . . exactly chocketh into joints." --Fuller. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Chock \Chock\, n. 1. A wedge, or block made to fit in any space which it is desired to fill, esp. something to steady a cask or other body, or prevent it from moving, by fitting into the space around or beneath it. [1913 Webster]
2. (Naut.) A heavy casting of metal, usually fixed near the gunwale. It has two short horn-shaped arms curving inward, between which ropes or hawsers may pass for towing, mooring, etc. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Chock \Chock\, adv. (Naut.) Entirely; quite; as, chock home; chock aft. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Chock \Chock\, v. t. [F. choquer. Cf. Shock, v. t.] To encounter. [Obs.] [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Chock \Chock\, n. An encounter. [Obs.] [1913 Webster]