The Collaborative International Dictionary
Thwite
Thwite \Thwite\, v. t. [AS. [thorn]w[=i]tan. See Whittle, and
cf. Thwaite a piece of land.]
To cut or clip with a knife; to whittle. [Obs. or Prov. Eng.]
--Chaucer.
Wiktionary
thwite
vb. (context obsolete UK dialect English) To cut or clip with a knife; to whittle.