Now dial. [freq. and dim. of THWITE v.: see -LE 3.] trans. To pare down or away, to whittle (also intr.): = THWITE v.
1593. G. Harvey, Pierces Super., Wks. (Grosart), II. 244. He hath thwittled the milpost of his huge conceit to a pudding-pricke.
1874. E. Waugh, Jannock, ii. 12. Hell not like to dine off o what wen bin thwittlin at.