IPA: /ˈwɪpˌstɒk/
KK: /ˈwɪpˌstɑk/
The rigid handle part of a whip that is held when using it.
The rider skillfully cracked the whip, using the whipstock to control the horse.
The word 'whipstock' is formed from 'whip' (from Old English 'hwippa', meaning a flexible instrument for striking) and 'stock' (from Old English 'stocc', meaning a stick or post). The term 'whipstock' refers to the handle or stock of a whip, which is the part that is held while using the whip.
Think of a 'flexible instrument for striking' ('whip') that is held by a 'stick' or 'post' ('stock') — that's how a whipstock functions.