The Collaborative International Dictionary
Turnwrest
Turnwrest \Turn"wrest`\, n.
Designating a cumbersome style of plow used in England, esp. in Kent.
designating a kind of hillside plow. [Eng.]
--Knight.
Wiktionary
turnwrest
n. (context UK English) A cumbersome kind of plough formerly used in England, especially in Kent.