CHOCK, noun In marine language, a kind of wedge for confining a cask or other body, to prevent it from moving. CHOCKs of the rudder, are pieces of timber kept in readiness to stop the motion of the rudder, in case of an accident, etc. CHOCK, an encounter. [See Shock.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI